feat: Pvc auto deletion logic

[Alexj9837]

Adds a new autodeletion cronjob that automattically deletes stale PVSs based on the last-used annotation, written by the time-stamper cronjob.

how it works:

• Deletion bash script iterates over all the PVCs
• If a PVC has a last-used older than 3 months it gets deleted
• Unless it has the annotation of protected = true

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.30%. Comparing base (65b7e75) to head (45cdbf3).
⚠️ Report is 26 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1514      +/-   ##
==========================================
+ Coverage   95.21%   95.30%   +0.09%     
==========================================
  Files          43       43              
  Lines        3132     3198      +66     
==========================================
+ Hits         2982     3048      +66     
  Misses        150      150              

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