Update promotion script to accommodate LTS

We need to update our github action to promote a new version to accommodate the changes requires to promote an LTS release:

1) For LTS we keep bumping the patch version, but for Cloud we need to start bumping the minor version instead.

2) For LTS, we need to bump the version on a reference branch that is not the master. We need to find a way to specify this branch.

3) We need to find a way to toggle this behavior. We can either have a different promote.yaml per branch or provide a new input for the action.

This ticket includes the time required to test the promotion script.