Feat: Enhance unused jobs discovery

[nati-elmaliach]

What this PR does / why we need it?

Enhance unused Jobs discovery.

• DeadlineExceeded
• FailedIndexes
• Suspended

PR Checklist

• This PR adds K8s exceptions (false positives)
• This PR adds new code
• This PR includes tests for new/existing code
• This PR adds docs

GitHub Issue

Closes #315

Notes for your reviewers

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.45%. Comparing base (01ce4a6) to head (8725dc7).
Report is 5 commits behind head on main.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #336      +/-   ##
==========================================
+ Coverage   42.39%   42.45%   +0.05%     
==========================================
  Files          61       61              
  Lines        3236     3239       +3     
==========================================
+ Hits         1372     1375       +3     
  Misses       1644     1644              
  Partials      220      220              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[doronkg]

Overall looks good, the expected jobs validation under jobs_test.go is nicely done.
Left 2 small comments regarding docs/spelling.

Can you attach an output example for the feature?