certificates/v1beta1 was deprecated in 1.19 and we can safely clear it's
dependencies in `kubectl certificates` command.
Kubernetes-commit: 48b8ee0d3ba40a19d40a7404f890031fe22bc111
To preserve loose coupling, it is needed to pass `RESTClientGetter`
instead `cmdutil.Factory` for all kubectl commands.
This PR removes `cmdutil.Factory` usage and instead
passes `RESTClientGetter` as well as required changes in unit tests.
Kubernetes-commit: 55cb8ba1ebe68d2fa6b33f1e474419b895eb31ea
Arda Güçlü
inosato
Jordan Liggitt