chore: adding helm lint ci test

[JaydipGabani]

fixes #3534

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, using fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when the PR gets merged):
Fixes #

Special notes for your reviewer:

Here is a failed CI test - https://github.com/JaydipGabani/gatekeeper/actions/runs/10780703724/job/29897033536

Here is a successful CI test - https://github.com/JaydipGabani/gatekeeper/actions/runs/10780456845

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.05%. Comparing base (3350319) to head (2b505ba).
Report is 140 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (3350319) and HEAD (2b505ba). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (3350319)	HEAD (2b505ba)
unittests	2	1

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3536      +/-   ##
==========================================
- Coverage   54.49%   48.05%   -6.45%     
==========================================
  Files         134      218      +84     
  Lines       12329    15167    +2838     
==========================================
+ Hits         6719     7288     +569     
- Misses       5116     7066    +1950     
- Partials      494      813     +319     

Flag	Coverage Δ
unittests	48.05% <ø> (-6.45%)	⬇️

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[sozercan]

Thank you! LGTM

[maxsmythe]

LGTM