Adds scripts and configurations to support hotfix release workflows

[varadarajan-tw]

This PR updates existing scripts and workflows to support hotfix releases.

Notes on the implementation and context here

This repo doesn't have a solid hotfix release strategy. As a result, we are not merging PRs to main as soon as the PRs are ready and only merge them during the release.

Having a solid hotfix release strategy should help us get over this bottleneck and help us ship at greater speed.

TLDR;

• All hotfixes will go via hotfix/* branches. External devs won't be able to push or create hotfix/* branches as per this rule set here.
• New CLI command will be added to internal action cli for auto creating hotfix branch from the latest deployed action destinations. (Logic here)
• The code fix should be pushed to these branches.
• New CLI command to release hotfixes. Hotfixes will be published from hotfix branch. The CLI command will auto-create a PR to main branch. Before next reelase, this PR has to be merged or closed.

Testing

• Sample Publish run from hotfix branch.
• Sample hotfix merge PR to main created.
• I'll be able to test package release tagging after merging these changes to main branch.