feat: use admission review v1

[eddycharly]

Explanation

This PR uses admission review v1 instead of v1beta1.
v1 requires:

• uid in the response is the same as in the request
• patchType must be set when returning patches

[codecov]

Codecov Report

Merging #5464 (d0aca66) into main (1ea4a0d) will increase coverage by 0.01%.
The diff coverage is 32.60%.

@@            Coverage Diff             @@
##             main    #5464      +/-   ##
==========================================
+ Coverage   36.42%   36.44%   +0.01%     
==========================================
  Files         171      171              
  Lines       19133    19137       +4     
==========================================
+ Hits         6970     6974       +4     
  Misses      11371    11371              
  Partials      792      792              

Impacted Files	Coverage Δ
pkg/controllers/webhook/controller.go	0.00% <0.00%> (ø)
pkg/webhooks/handlers/admission.go	0.00% <0.00%> (ø)
pkg/webhooks/handlers/error.go	0.00% <0.00%> (ø)
pkg/webhooks/handlers/protect.go	0.00% <0.00%> (ø)
pkg/webhooks/handlers/verify.go	0.00% <0.00%> (ø)
pkg/webhooks/policy/handlers.go	0.00% <0.00%> (ø)
pkg/webhooks/resource/utils.go	35.18% <0.00%> (ø)
pkg/webhooks/resource/handlers.go	48.88% <55.55%> (ø)
pkg/utils/admission/response.go	100.00% <100.00%> (ø)

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[prateekpandey14]

Do we need to test the upgrade once to see every thing is seamless ?. Ideally it should work but just in case.

[realshuting]

Do we need to test the upgrade once to see every thing is seamless ?. Ideally it should work but just in case.

Agreed, we need to test the upgrade and make sure it works as expected.

[eddycharly]

@realshuting I'm trying right now.

[eddycharly]

@realshuting @prateekpandey14 worked like a charm :)

[realshuting]

/lgtm