Promoted v1alpha1 resources to v1beta1

[enrichman]

Fix #470

This PR it's just a plain replace of the v1alpha1 resources. It's a breaking change but since we are in a non-production setup it's ok.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 84.96241% with 20 lines in your changes missing coverage. Please review.
✅ Project coverage is 57.32%. Comparing base (12971f5) to head (b400b0f).

Files with missing lines	Patch %	Lines
cli/cmds/cluster_create.go	57.14%	8 Missing and 1 partial ⚠️
k3k-kubelet/controller/syncer/pod.go	0.00%	2 Missing ⚠️
pkg/controller/cluster/statefulset.go	50.00%	2 Missing ⚠️
cli/cmds/cluster_create_flags.go	75.00%	1 Missing ⚠️
cli/cmds/cluster_delete.go	50.00%	1 Missing ⚠️
k3k-kubelet/provider/configure.go	0.00%	1 Missing ⚠️
k3k-kubelet/provider/provider.go	0.00%	1 Missing ⚠️
pkg/controller/cluster/cluster.go	95.45%	1 Missing ⚠️
pkg/controller/cluster/cluster_finalize.go	75.00%	0 Missing and 1 partial ⚠️
pkg/controller/cluster/status.go	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #505      +/-   ##
==========================================
+ Coverage   57.03%   57.32%   +0.28%     
==========================================
  Files          56       56              
  Lines        6559     6559              
==========================================
+ Hits         3741     3760      +19     
+ Misses       2550     2537      -13     
+ Partials      268      262       -6     

Flag	Coverage Δ
cli	51.97% <73.50%> (+0.51%)	⬆️
controller	58.01% <60.68%> (-0.07%)	⬇️
e2e	58.01% <60.68%> (-0.07%)	⬇️
unit	40.82% <67.39%> (+0.05%)	⬆️

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