TypeError: 'TranscriptionWord' object is not subscriptable

The captacity package gives error while using with latest openai version (1.74.0)

```log
File "/Users/captacity/venv/lib/python3.10/site-packages/captacity/transcriber.py", line 22, in transcribe_with_api
    word["word"] = " " + word["word"]
TypeError: 'TranscriptionWord' object is not subscriptable
```

Can you mention which version of *openai* and *moviepy* you used for captacity.