K8s v1.22.x prep

[expFlower]

What does this PR do?

• Adds new functionality
• Alters existing functionality
• Fixes a bug
• Improves documentation or testing

Please briefly describe your changes as well as the motivation behind them:

• Update CRD to be 1.22.x and above compatible
• Update kubebuilder references
• Update .charts
• Updated controller-gen to version 0.7.0: Bumps to kubernetes 1.22.1, remove support for legacy v1beta1 CRDs and webhooks

Code Quality Checklist

• The documentation is up to date.
• My code is sufficiently commented and passes continuous integration checks.
• I have signed my commit (see Contributing Docs).

Testing

• I leveraged continuous integration testing
  • by depending on existing unit tests or end-to-end tests.
  • by adding new unit tests or end-to-end tests.
• I manually tested the following steps:
  • x
  • locally.
  • as a canary deployment to a cluster.