chore: Move to maintained yaml library

[mrueg]

What this PR does / why we need it: gopkg.in/yaml is unmaintained, this moves the dependency to a maintained yaml library https://github.com/yaml/go-yaml which is also used by https://github.com/kubernetes-sigs/yaml?tab=readme-ov-file#compatibility (which is used in gatekeeper as well)

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:

[codecov-commenter]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 40.65%. Comparing base (3350319) to head (33f702f). :warning: Report is 531 commits behind head on master.

:exclamation: There is a different number of reports uploaded between BASE (3350319) and HEAD (33f702f). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (3350319)	HEAD (33f702f)
unittests	2	1

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #4227       +/-   ##
===========================================
- Coverage   54.49%   40.65%   -13.84%     
===========================================
  Files         134      251      +117     
  Lines       12329    17723     +5394     
===========================================
+ Hits         6719     7206      +487     
- Misses       5116     9891     +4775     
- Partials      494      626      +132     

Flag	Coverage Δ
unittests	40.65% <ø> (-13.84%)	:arrow_down:

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[JaydipGabani]

@mrueg can you resolve conflict?

[mrueg]

@mrueg can you resolve conflict?

Rebased.

[sozercan]

do we need to vendor this? lgtm otherwise, thanks!

[JaydipGabani]

@mrueg plesae fix the conflicts.

[JaydipGabani]

@mrueg can you address the feedback above?

[mrueg]

@JaydipGabani which one? The one from CoPilot seems to be wrong, as it effectively reverts this change.

[JaydipGabani]

Ohh nvm, I thought the earlier feedback was not addressed, we can dismiss copilot one. My appologies.