chore(ci): add automatic cache cleanup for closed main branch PRs

[fvaleye]

Description

Add a step to clean the cache entries of GitHub actions:

• Integrate cleanup-cache job into dev_pr.yml workflow
• Delete up to 100 cache entries per closed PR targeting main
• Prevent cache thrashing with proper error handling and logging

Documentation

• https://docs.github.com/en/actions/how-tos/manage-workflow-runs/manage-caches#force-deleting-cache-entries

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.10%. Comparing base (ed4e244) to head (d3dfdab).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3793   +/-   ##
=======================================
  Coverage   76.10%   76.10%           
=======================================
  Files         145      145           
  Lines       45200    45200           
  Branches    45200    45200           
=======================================
+ Hits        34399    34400    +1     
  Misses       9105     9105           
+ Partials     1696     1695    -1     

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[rtyler]

Because there are other types of targets in this list, I think this is going to purge the caches for any pull request action rather than just "closed".

I don't think there's a downside to creating a separate workflow file just for the cleanup and then that can uave

on:
  pull_request_target:
    - closed

[fvaleye]

Right, thanks @rtyler