this epic tracks automation needed to eliminate manual intervention while doing releases

🔥 after code freeze (and 5.0.5 🤷)

the following is true for release branches including 5.0.5

when code freeze is done, the following happens automatically:

• a release branch is cut in gitlab/p12n repo from the 5.0.5 branch
• maxOpenShiftVersion, etc should be configured
• HB and cpaas configs are created
• errata is created

• we also need to figure out git based release notes where they are updated each time the release notes field is updated
• whenever the release notes are updated in an issue in jira, the update is posted to a git repo / dashboard
• write a mechanism to automatically collate upstream release notes as well in a release based on upstream components’ version bumps