Automate GitHub release process with Codex and GitHub Action

[zinwang]

Implement a CI workflow to automate our monthly GitHub release cycle, encompassing:

1. Opening an issue that summarizes all pull requests merged in the previous month.
2. Creating a pull request to update version numbers and revise the changelog.
3. Generating a draft of the release notes.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.94%. Comparing base (cd17219) to head (2b24dee).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #782   +/-   ##
=======================================
  Coverage   80.94%   80.94%           
=======================================
  Files          75       75           
  Lines        6308     6308           
=======================================
  Hits         5106     5106           
  Misses       1202     1202           

Flag	Coverage Δ
unittests	80.94% <ø> (ø)

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[zinwang]

Resolve #783

[sidra-asa]

LGTM, Thank you.