Add labels to maintenance job pods

[shubham-pampattiwar]

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Fixes #(issue)

Please indicate you've done the following:

• [x] Accepted the DCO. Commits without the DCO will delay acceptance.
• [x] Created a changelog file (make new-changelog) or comment /kind changelog-not-required on this PR.
• [ ] Updated the corresponding documentation in site/content/docs/main.

[codecov[bot]]

Codecov Report

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

Please upload report for BASE (main@11f771f). Learn more about missing BASE report. Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #8246 +/- ## ======================================= Coverage ? 59.19% ======================================= Files ? 367 Lines ? 30841 Branches ? 0 ======================================= Hits ? 18256 Misses ? 11124 Partials ? 1461 ```

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