streamingRecognize on speech v2 does not work

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### A screenshot that you have tested with "Try this API".

N/A

### Link to the code that reproduces this issue. A link to a **public** Github Repository or gist with a minimal reproduction.

https://buganizer.corp.google.com/issues/408977549

### A step-by-step description of how to reproduce the issue, based on the linked reproduction.

Not sure yet but there is a workaround, we need to investigate

### A clear and concise description of what the bug is, and what you expected to happen.

Should work with the public method, not the internal method

### A clear and concise description WHY you expect this behavior, i.e., was it a recent change, there is documentation that points to this behavior, etc. **

Seems like it has been broken for a while given stack overflow workaround https://stackoverflow.com/questions/76722471/how-to-setup-streamingrecognize-google-cloud-speech-to-text-v2-in-node-js