(feat): full release automation

[ilan-gold]

Please describe your wishes and possible alternatives to achieve the desired result.

In the wake of our first "automated" changelog generation, I think we can automate the rest of the process as follows:

1. On merge from a branch called release_notes_X.Y.Z.xcxc into either a version or the main branch, we generate a github release either based off the newest changelog notes or the release_notes_X.Y.Z.xcxc branch name
2. Our normal release process proceeds

This the trigger for release would be hatch run towncrier:build X.Y.Z.xcxc