add flag based fix to avoid default endpoint

[vepatel]

Proposed changes

• This PR adds extra gates which stops mgmt cm from getting synced if controller is in shut down mode or pod is marked for deletion

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 10 lines in your changes missing coverage. Please review.

Project coverage is 52.18%. Comparing base (e52961b) to head (314e251).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/k8s/configmap.go	0.00%	8 Missing ⚠️
cmd/nginx-ingress/main.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7691   +/-   ##
=======================================
  Coverage   52.17%   52.18%           
=======================================
  Files          89       89           
  Lines       21265    21290   +25     
=======================================
+ Hits        11096    11111   +15     
- Misses       9705     9715   +10     
  Partials      464      464           

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.