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)
• [x] This PR adds new code
• [x] This PR includes tests for new/existing code
• [ ] This PR adds docs

GitHub Issue

Closes #315

Notes for your reviewers

[codecov-commenter]

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

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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

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

Additional details and impacted files

```diff @@ 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 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.