docs: Readme release script

[brandenchan]

Proposed Changes:

• This script automatically creates a new release in Readme of Haystack docs
• It also updates the category id of API docs so they sync to the right place

TODO:

• Make it a github workflow
• implement logic that is sensitive to what kind of release (new version or incremental version)

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added tests that demonstrate the correct behavior of the change
• I've used the conventional commit convention for my PR title
• I documented my code
• I ran pre-commit hooks and fixed any issue