Remove support for CronJob api version 'batch/v1beta1'

[DilaraOflaz]

Describe the bug
Currently Kubetools v13.9.3 support CronJob api versions 'batch/v1beta1' & 'batch/v1'
Because we force Kubernetes library to be >=21.7.0 and <25.0.0

When we will upgrade Kubernetes version to a version >=25.0.0, CronJob api versions 'batch/v1beta1' won't work anymore.
So we will have to remove the support for it in our code.

Additional context
CronJob apiVersion: batch/v1 is supported by Kubernetes version v1.21+, here is the doc
For lower versions we have to use apiVersion: batch/v1beta1
The latest version of Kubernetes that supports apiVersion: batch/v1beta1 is v1.24+, here is the doc