Auto-label pre-commit autoupdate PRs with "no releasenotes"

[Sohaibameer204]

Resolves the issue where auto-generated pre-commit update PRs were missing the "no releasenotes" label.

This workflow "label-precommit-prs.yml" file checks if a PR title includes "pre-commit autoupdate" and automatically applies the "no releasenotes" label. This ensures consistent labeling of automated PRs and improves release note handling.

Closes #[69]

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📚 Documentation preview 📚: https://causalpy--471.org.readthedocs.build/en/471/

[drbenvincent]

Thanks for the PR @Sohaibameer204! So I am not strong with GitHub actions yet. This does seem like a totally legit approach, and maybe the approach.

My naive prediction was that closing #469 would involve finding the action that creates the PR and just adds the label. But it's also entirely unclear to me where these PR's are actually originating from.

Regardless of whether that becomes the solution, it would be interesting (from a repo maintenance perspective) to understand where the recommit autoupdate PR's are coming from. Tagging @williambdean in case you know.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.67%. Comparing base (5d1da5c) to head (289fc1c).
Report is 9 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #471   +/-   ##
=======================================
  Coverage   94.67%   94.67%           
=======================================
  Files          32       32           
  Lines        2196     2196           
=======================================
  Hits         2079     2079           
  Misses        117      117           

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[williambdean]

Looks good to me!