Introduces a new release action for cutting a release-action by directly
moving the next release-train into the `release-candidate` phase.
This allows the Angular team to release minor versions without
needing to branch-off first into the feature-freeze phase. For
minors this phase can be skipped. Switching into the feature-freeze
phase beforehand as a workaround would have allowed for branching-off
but has the downside that `target: minor` would no longer point to the
branched-off release train (only `target: rc` would work then).
PR Close#42973