Fix push_to_hub by not calling create_branch if PR branch

Fix push_to_hub by not calling create_branch if PR branch (e.g. `refs/pr/1`).

Note that currently create_branch raises a 400 Bad Request error if the user passes a PR branch (e.g. `refs/pr/1`).

EDIT:
~~Fix push_to_hub by not calling create_branch if branch exists.~~

Note that currently create_branch raises a 403 Forbidden error even if all these conditions are met:
- exist_ok is passed
- the branch already exists
- the user does not have WRITE permission

Fix #7067.

Related issue:
- https://github.com/huggingface/huggingface_hub/issues/2419


The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7069). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

cc @Wauplin maybe it's a `huggingface_hub` bug ?

EDIT: ah actually the issue is opened at https://github.com/huggingface/huggingface_hub/issues/2419

I think we need to make this fix anyway, ~~unless we pin the lower version of huggingface-hub (once they release the patch)~~.
- Calling create_branch with a PR ref raises an error

Comment by @Wauplin: https://github.com/huggingface/huggingface_hub/pull/2426#issuecomment-2257657543
> I think this should be something to fix in datasets directly. Having a 400 Bad request when trying to create the branch refs/pr/1 seems normal to me since it's not a branch.

does this mean we should use `create_pull_request()` in that case ?

> does this mean we should use create_pull_request() in that case ?

If user wants to push some data to a new PR, they can already pass `create_pr=True` which will automatically do the job for you (without using `revision`). If user is passing `revision="refs/pr/1"` explicitly, you should assume the PR already exists.

ah yes we do pass create_pr in `preupload_lfs_files()` ! sounds good then

<details>
<summary>Show benchmarks</summary>

PyArrow==8.0.0

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.005806 / 0.011353 (-0.005547) | 0.004082 / 0.011008 (-0.006927) | 0.064277 / 0.038508 (0.025769) | 0.032289 / 0.023109 (0.009180) | 0.242066 / 0.275898 (-0.033832) | 0.272574 / 0.323480 (-0.050906) | 0.003281 / 0.007986 (-0.004705) | 0.002957 / 0.004328 (-0.001371) | 0.049930 / 0.004250 (0.045679) | 0.047306 / 0.037052 (0.010253) | 0.252216 / 0.258489 (-0.006273) | 0.286678 / 0.293841 (-0.007163) | 0.030182 / 0.128546 (-0.098364) | 0.012967 / 0.075646 (-0.062680) | 0.204949 / 0.419271 (-0.214323) | 0.036999 / 0.043533 (-0.006534) | 0.243577 / 0.255139 (-0.011562) | 0.265044 / 0.283200 (-0.018156) | 0.021149 / 0.141683 (-0.120534) | 1.112293 / 1.452155 (-0.339862) | 1.186483 / 1.492716 (-0.306233) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.093239 / 0.018006 (0.075233) | 0.286372 / 0.000490 (0.285883) | 0.000224 / 0.000200 (0.000024) | 0.000062 / 0.000054 (0.000007) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.019042 / 0.037411 (-0.018369) | 0.063690 / 0.014526 (0.049164) | 0.075034 / 0.176557 (-0.101523) | 0.123053 / 0.737135 (-0.614083) | 0.076843 / 0.296338 (-0.219495) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.276554 / 0.215209 (0.061345) | 2.749338 / 2.077655 (0.671683) | 1.442764 / 1.504120 (-0.061356) | 1.327860 / 1.541195 (-0.213335) | 1.369885 / 1.468490 (-0.098606) | 0.722645 / 4.584777 (-3.862132) | 2.430707 / 3.745712 (-1.315005) | 3.105293 / 5.269862 (-2.164568) | 1.961617 / 4.565676 (-2.604060) | 0.077728 / 0.424275 (-0.346547) | 0.005189 / 0.007607 (-0.002418) | 0.335511 / 0.226044 (0.109467) | 3.315618 / 2.268929 (1.046690) | 1.858254 / 55.444624 (-53.586371) | 1.552173 / 6.876477 (-5.324304) | 1.627086 / 2.142072 (-0.514987) | 0.790871 / 4.805227 (-4.014356) | 0.136958 / 6.500664 (-6.363706) | 0.043207 / 0.075469 (-0.032262) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.969314 / 1.841788 (-0.872473) | 12.145318 / 8.074308 (4.071010) | 9.834839 / 10.191392 (-0.356553) | 0.141896 / 0.680424 (-0.538528) | 0.014304 / 0.534201 (-0.519897) | 0.306091 / 0.579283 (-0.273192) | 0.260994 / 0.434364 (-0.173369) | 0.348096 / 0.540337 (-0.192242) | 0.441458 / 1.386936 (-0.945478) |

</details>
PyArrow==latest

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.005989 / 0.011353 (-0.005363) | 0.003907 / 0.011008 (-0.007102) | 0.050819 / 0.038508 (0.012310) | 0.033178 / 0.023109 (0.010069) | 0.279059 / 0.275898 (0.003161) | 0.300161 / 0.323480 (-0.023319) | 0.004383 / 0.007986 (-0.003603) | 0.002834 / 0.004328 (-0.001495) | 0.048779 / 0.004250 (0.044528) | 0.040502 / 0.037052 (0.003450) | 0.291786 / 0.258489 (0.033297) | 0.323827 / 0.293841 (0.029986) | 0.032175 / 0.128546 (-0.096371) | 0.012157 / 0.075646 (-0.063489) | 0.060796 / 0.419271 (-0.358476) | 0.033924 / 0.043533 (-0.009609) | 0.278047 / 0.255139 (0.022908) | 0.297878 / 0.283200 (0.014678) | 0.019137 / 0.141683 (-0.122546) | 1.138996 / 1.452155 (-0.313158) | 1.172731 / 1.492716 (-0.319985) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.110148 / 0.018006 (0.092142) | 0.307232 / 0.000490 (0.306742) | 0.000209 / 0.000200 (0.000009) | 0.000044 / 0.000054 (-0.000010) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.023082 / 0.037411 (-0.014330) | 0.076590 / 0.014526 (0.062065) | 0.088444 / 0.176557 (-0.088113) | 0.129293 / 0.737135 (-0.607842) | 0.090470 / 0.296338 (-0.205868) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.305016 / 0.215209 (0.089807) | 2.931671 / 2.077655 (0.854016) | 1.586055 / 1.504120 (0.081935) | 1.463517 / 1.541195 (-0.077678) | 1.479654 / 1.468490 (0.011164) | 0.726194 / 4.584777 (-3.858583) | 0.970512 / 3.745712 (-2.775200) | 2.850496 / 5.269862 (-2.419365) | 1.920112 / 4.565676 (-2.645564) | 0.079921 / 0.424275 (-0.344354) | 0.005367 / 0.007607 (-0.002240) | 0.347022 / 0.226044 (0.120978) | 3.472425 / 2.268929 (1.203497) | 1.965400 / 55.444624 (-53.479225) | 1.669116 / 6.876477 (-5.207361) | 1.859504 / 2.142072 (-0.282568) | 0.802703 / 4.805227 (-4.002525) | 0.134776 / 6.500664 (-6.365888) | 0.041800 / 0.075469 (-0.033669) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.039665 / 1.841788 (-0.802122) | 12.024071 / 8.074308 (3.949763) | 10.338743 / 10.191392 (0.147351) | 0.139495 / 0.680424 (-0.540929) | 0.015249 / 0.534201 (-0.518952) | 0.298580 / 0.579283 (-0.280703) | 0.124625 / 0.434364 (-0.309739) | 0.341868 / 0.540337 (-0.198470) | 0.431396 / 1.386936 (-0.955540) |

</details>
</details>

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