Hz enterprise rhel release automation

[mtyazici]

Added workflow for Hazelcast-operator RHEL release. It does the following:

• Install all dependencies to complete the process
• Downloads the Hazelcast Helm chart and overwrites some fields in statefulset.yml and values.yml
• Generates operator files, then the operator image
• Updates the values in files that are used for deployment test in OC environment.
• Pushes the operator image to scan registry
• Connects to the Hazelcast OC environment and creates a project.
• Deploys operator image into OC pulling the image from the scan registry, and waits for it to be ready
• Deploys Hazelcast members and the management center, and waits for all of them to be ready
• Checks the cluster size by looking at the log of the last Hazelcast member
• Checks the management center logs to verify members can talk to the management center
• Publishes the operator image
• Creates RHEL operator bundle image
• Pushes the operator bundle image to scan registry
• Publishes the operator bundle image
• Updates the versions the hazelcast-operator repo and creates a PR for the changes