fix(SpeechT5Config): missing annotation on `inputs_to_logits_ratio` property
Author: sw00
Pull request: yes

# What does this PR do?

Add the missing `@property` annotation on `SpeechT5Config` which causes failures on `AutomaticSpeechRecognitionPipeline`'s preprocessing steps if `chunk_length_s` is specified.

Specifically, the following line of code will fail since `getattr` will resolve to a method instead of the value:

```python
align_to = getattr(self.model.config, "inputs_to_logits_ratio", 1)
```

This stacktrace is generated on this error:

```
Traceback (most recent call last):
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/litserve/loops/simple_loops.py", line 88, in run_single_loop
    y = _inject_context(
        ^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/litserve/loops/base.py", line 48, in _inject_context
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/src/omniserve/api.py", line 19, in predict
    return self.model.predict(audio_data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/src/omniserve/model.py", line 63, in predict
    output = self.pipeline(input)
             ^^^^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/transformers/pipelines/automatic_speech_recognition.py", line 275, in __call__
    return super().__call__(inputs, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/transformers/pipelines/base.py", line 1459, in __call__
    return next(
           ^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/transformers/pipelines/pt_utils.py", line 126, in __next__
    item = next(self.iterator)
           ^^^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/transformers/pipelines/pt_utils.py", line 271, in __next__
    processed = self.infer(next(self.iterator), **self.params)
                           ^^^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/torch/utils/data/dataloader.py", line 734, in __next__
    data = self._next_data()
           ^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/torch/utils/data/dataloader.py", line 790, in _next_data
    data = self._dataset_fetcher.fetch(index)  # may raise StopIteration
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/torch/utils/data/_utils/fetch.py", line 33, in fetch
    data.append(next(self.dataset_iter))
                ^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/transformers/pipelines/pt_utils.py", line 188, in __next__
    processed = next(self.subiterator)
                ^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sett/src/model-cloud/servers/omniserve/.venv/lib/python3.12/site-packages/transformers/pipelines/automatic_speech_recognition.py", line 450, in preprocess
    chunk_len = int(round(chunk_length_s * self.feature_extractor.sampling_rate / align_to) * align_to)
                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
TypeError: unsupported operand type(s) for /: 'float' and 'method'
```
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Comments:
Not sure why CircleCI is failing - @ydshieh can you force-merge this? It's a one-line fix that shouldn't cause problems.

**[For maintainers]** Suggested jobs to run (before merge)

run-slow: speecht5