Add 2nd-gen YouTube Sample (#1220)

* feat: Add 2nd-gen YouTube sample to Node folder

This commit introduces a new 2nd-gen Cloud Function sample for YouTube, located in the `Node/youtube` directory. This sample is the TypeScript equivalent of the existing 1st-gen sample in `Node-1st-gen/youtube`.

Key features of this new sample include:
- Use of 2nd-gen Cloud Functions.
- Written in TypeScript, leveraging Node 22's optional type stripping.
- Implements a secret parameter for the YouTube API key, enhancing security.
- Provides a clear and updated README.md with instructions for setup and deployment.

* feat: Add 2nd-gen YouTube sample to Node folder

This commit introduces a new 2nd-gen Cloud Function sample for YouTube, located in the `Node/youtube` directory. This sample is the TypeScript equivalent of the existing 1st-gen sample in `Node-1st-gen/youtube`.

Key features of this new sample include:
- Use of 2nd-gen Cloud Functions.
- Written in TypeScript, leveraging Node 22's optional type stripping.
- Implements a secret parameter for the YouTube API key, enhancing security.
- Provides a clear and updated README.md with instructions for setup and deployment.

* remove lint command

* feat: Add 2nd-gen YouTube sample to Node folder

This commit introduces a new 2nd-gen Cloud Function sample for YouTube, located in the `Node/youtube` directory. This sample is the TypeScript equivalent of the existing 1st-gen sample in `Node-1st-gen/youtube`.

Key features of this new sample include:
- Use of 2nd-gen Cloud Functions.
- Written in TypeScript, leveraging Node 22's optional type stripping.
- Implements a secret parameter for the YouTube API key, enhancing security.
- Provides a clear and updated README.md with instructions for setup and deployment.

* add built assets to gitignore

* re-run bootstrap

* fix functions version

* fix tsconfig

* remove final references to package capitalize-sentence package

* run npm update

* try again

* restore files to match main

* fix compile (don't actually emit any files now that we're using type stripping)

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Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: Jeff Huleatt <[email protected]>

Author: google-labs-jules[bot]