Migrate IndexManagement CronJobs from v1beta1 to v1

Due to the upcoming limitation in kubernetes 1.25, we need to upgrade EO to reconcile CronJobs using the v1 API instead of nowadays v1beta1:
https://kubernetes.io/docs/reference/using-api/deprecation-guide/#cronjob-v125

Notes

• Migrating api in Golang source code from batch/v1beta1 to batch/v1
• Rename fields from v1beta1 to v1 if any
• Upgrade smoke test for index management crojobs: Create first with v1beta1 and then let the operator upgrade the cronjobs to v1.