Adding 1.23 support

[boyamurthy]

This PR contains

1. New sample file for k8 1.23
2. Updated K8 supported versions

GitHub Issues

List the GitHub issues impacted by this PR:

GitHub Issue #
#136

Checklist:

• Have you run format,vet & lint checks against your submission?
• Have you made sure that the code compiles?
• Did you run the unit & integration tests successfully?
• Have you maintained at least 90% code coverage?
• Have you commented your code, particularly in hard-to-understand areas
• Have you done corresponding changes to the documentation
• Did you run tests in a real Kubernetes cluster?
• Backward compatibility is not broken

[prablr79]

@boyamurthy please make sure you test the same version side cars for previous K8 versions.

[boyamurthy]

@boyamurthy please make sure you test the same version side cars for previous K8 versions.

yes @prablr79 , will use the same side car version for k8 1.21 and 1.22 .