fix: move conversion webhooks to hub version API (v1alpha3)

[odubajDT]

No description provided.

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
2.9% Duplication

[codecov]

Codecov Report

Merging #992 (03f5cc5) into main (59ee362) will decrease coverage by 0.10%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #992      +/-   ##
==========================================
- Coverage   57.81%   57.71%   -0.10%     
==========================================
  Files         122      126       +4     
  Lines       10095    10111      +16     
==========================================
  Hits         5836     5836              
- Misses       4051     4067      +16     
  Partials      208      208              

Impacted Files	Coverage Δ
...erator/apis/lifecycle/v1alpha3/keptnapp_webhook.go	0.00% <ø> (ø)
...apis/lifecycle/v1alpha3/keptnappversion_webhook.go	0.00% <ø> (ø)
...ecycle/v1alpha3/keptnevaluationprovider_webhook.go	0.00% <0.00%> (ø)
...ifecycle/v1alpha3/keptnworkloadinstance_webhook.go	0.00% <ø> (ø)

Flag	Coverage Δ
certificate-operator	64.15% <ø> (ø)
component-tests	53.12% <ø> (+0.05%)	⬆️
lifecycle-operator	53.63% <0.00%> (ø)
metrics-operator	62.98% <ø> (ø)
scheduler	21.17% <ø> (ø)

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