Update docs on trust_remote_code defaults to False

Update docs on trust_remote_code defaults to False.

The docs needed to be updated due to this PR:
- #6954

The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6981). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

<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) | 0.005578 / 0.011353 (-0.005775) | 0.003946 / 0.011008 (-0.007062) | 0.063317 / 0.038508 (0.024808) | 0.031878 / 0.023109 (0.008769) | 0.312571 / 0.275898 (0.036673) | 0.281415 / 0.323480 (-0.042065) | 0.004139 / 0.007986 (-0.003846) | 0.002730 / 0.004328 (-0.001598) | 0.049539 / 0.004250 (0.045289) | 0.045056 / 0.037052 (0.008003) | 0.263820 / 0.258489 (0.005330) | 0.297817 / 0.293841 (0.003976) | 0.029490 / 0.128546 (-0.099056) | 0.012467 / 0.075646 (-0.063179) | 0.204607 / 0.419271 (-0.214664) | 0.036305 / 0.043533 (-0.007228) | 0.244102 / 0.255139 (-0.011037) | 0.267855 / 0.283200 (-0.015345) | 0.019794 / 0.141683 (-0.121889) | 1.130784 / 1.452155 (-0.321371) | 1.172507 / 1.492716 (-0.320209) |

### 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) | 0.092430 / 0.018006 (0.074424) | 0.296460 / 0.000490 (0.295970) | 0.000210 / 0.000200 (0.000010) | 0.000042 / 0.000054 (-0.000012) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.019467 / 0.037411 (-0.017944) | 0.062850 / 0.014526 (0.048324) | 0.074067 / 0.176557 (-0.102490) | 0.123280 / 0.737135 (-0.613856) | 0.077036 / 0.296338 (-0.219302) |

### 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) | 0.282687 / 0.215209 (0.067478) | 2.786715 / 2.077655 (0.709060) | 1.492028 / 1.504120 (-0.012092) | 1.373603 / 1.541195 (-0.167592) | 1.405004 / 1.468490 (-0.063486) | 0.714408 / 4.584777 (-3.870369) | 2.376785 / 3.745712 (-1.368927) | 2.916150 / 5.269862 (-2.353712) | 1.921184 / 4.565676 (-2.644493) | 0.078354 / 0.424275 (-0.345921) | 0.005236 / 0.007607 (-0.002371) | 0.334647 / 0.226044 (0.108603) | 3.262069 / 2.268929 (0.993140) | 1.858300 / 55.444624 (-53.586324) | 1.572968 / 6.876477 (-5.303509) | 1.659145 / 2.142072 (-0.482927) | 0.779546 / 4.805227 (-4.025681) | 0.132623 / 6.500664 (-6.368041) | 0.042423 / 0.075469 (-0.033046) |

### 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) | 0.985516 / 1.841788 (-0.856271) | 12.001321 / 8.074308 (3.927013) | 9.927011 / 10.191392 (-0.264381) | 0.142645 / 0.680424 (-0.537779) | 0.013808 / 0.534201 (-0.520393) | 0.303422 / 0.579283 (-0.275861) | 0.262666 / 0.434364 (-0.171698) | 0.339369 / 0.540337 (-0.200969) | 0.431028 / 1.386936 (-0.955908) |

</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) | 0.005848 / 0.011353 (-0.005505) | 0.003971 / 0.011008 (-0.007037) | 0.050746 / 0.038508 (0.012238) | 0.031554 / 0.023109 (0.008445) | 0.277678 / 0.275898 (0.001780) | 0.300776 / 0.323480 (-0.022704) | 0.004428 / 0.007986 (-0.003558) | 0.002773 / 0.004328 (-0.001555) | 0.049882 / 0.004250 (0.045632) | 0.039833 / 0.037052 (0.002780) | 0.289143 / 0.258489 (0.030654) | 0.321425 / 0.293841 (0.027584) | 0.031701 / 0.128546 (-0.096845) | 0.012687 / 0.075646 (-0.062960) | 0.060650 / 0.419271 (-0.358621) | 0.033318 / 0.043533 (-0.010215) | 0.277019 / 0.255139 (0.021880) | 0.292345 / 0.283200 (0.009145) | 0.018520 / 0.141683 (-0.123163) | 1.143933 / 1.452155 (-0.308222) | 1.183913 / 1.492716 (-0.308803) |

### 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) | 0.094467 / 0.018006 (0.076461) | 0.298822 / 0.000490 (0.298332) | 0.000201 / 0.000200 (0.000001) | 0.000045 / 0.000054 (-0.000010) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.022811 / 0.037411 (-0.014601) | 0.078084 / 0.014526 (0.063558) | 0.089079 / 0.176557 (-0.087477) | 0.130229 / 0.737135 (-0.606906) | 0.090851 / 0.296338 (-0.205487) |

### 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) | 0.294981 / 0.215209 (0.079772) | 2.908294 / 2.077655 (0.830639) | 1.591281 / 1.504120 (0.087161) | 1.446032 / 1.541195 (-0.095162) | 1.469441 / 1.468490 (0.000951) | 0.726477 / 4.584777 (-3.858300) | 0.983086 / 3.745712 (-2.762626) | 2.892715 / 5.269862 (-2.377147) | 1.974092 / 4.565676 (-2.591584) | 0.079500 / 0.424275 (-0.344775) | 0.005497 / 0.007607 (-0.002110) | 0.342220 / 0.226044 (0.116176) | 3.414508 / 2.268929 (1.145579) | 1.941550 / 55.444624 (-53.503074) | 1.645268 / 6.876477 (-5.231209) | 1.805909 / 2.142072 (-0.336163) | 0.814483 / 4.805227 (-3.990744) | 0.135867 / 6.500664 (-6.364797) | 0.041718 / 0.075469 (-0.033751) |

### 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) | 0.999751 / 1.841788 (-0.842036) | 12.488263 / 8.074308 (4.413954) | 10.867040 / 10.191392 (0.675648) | 0.143999 / 0.680424 (-0.536425) | 0.015496 / 0.534201 (-0.518705) | 0.302170 / 0.579283 (-0.277113) | 0.123753 / 0.434364 (-0.310611) | 0.340424 / 0.540337 (-0.199913) | 0.458339 / 1.386936 (-0.928597) |

</details>
</details>

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