Support Google Artifact Registry as target

[kjvellajr]

Initial implementation to support Google Artifact Registry as a target registry. I have tested this with a GCP account on GKE using Workload Identity (Google's version of IRSA).

Please let me know if there are any tweaks or changes that can be done to make this align with the project direction.

closes #296

[codecov]

Codecov Report

Patch coverage: 50.00% and project coverage change: -2.87 ⚠️

Comparison is base (0a01de7) 67.34% compared to head (9efbc9f) 64.48%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #447      +/-   ##
==========================================
- Coverage   67.34%   64.48%   -2.87%     
==========================================
  Files           6        6              
  Lines         392      366      -26     
==========================================
- Hits          264      236      -28     
- Misses        103      107       +4     
+ Partials       25       23       -2     

Impacted Files	Coverage Δ
pkg/config/config.go	0.00% <ø> (ø)
pkg/types/types.go	68.96% <0.00%> (-31.04%)	⬇️
pkg/webhook/image_swapper.go	62.06% <66.66%> (-0.18%)	⬇️
pkg/webhook/image_copier.go	73.68% <100.00%> (-0.90%)	⬇️

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[bygui86]

any update guys?

[bygui86]

amazing guys!! thanks a lot for the effort!!
when do you plan to release this?

[estahn]

when do you plan to release this?

There is an automated monthly release cycle in place. If required there can also b an earlier release. I'm waiting for #394 to be finalised and ideally also #361