[BUG] Supported kubernetes library is severely outdated

[lkubb]

Description
This extension only supports severely outdated versions of the kubernetes library. For details, see saltstack/salt#62621 and saltstack/salt#63090

Setup
irrelevant

Steps to Reproduce the behavior
install the extension

Expected behavior
Support recent versions

Screenshots
We're currently pinning kubernetes==3.0.0 from 2017. This causes some installation issues in the Windows/macOS test jobs.

Versions Report
1.0.1

[benfiedler]

Agreed - I have made and tested some offline changes to the state+module (which I hope to eventually contribute back), but I bumped the kubernetes module version to 19.15.0. Reason I picked that one is it's the first version that lists supports for python 3.10.

I think the bare minimum changes needed for kubernetesmod.py to function with 19.15.0 was to remove 'beta' from the hard coded calls for deployment/deployment spec, e.g. AppsV1beta1DeploymentSpec -> AppsV1DeploymentSpec