Currently the active release trains are printed when a developer
runs `ng-dev publish release`. This is not ideal because it requires
the developer to provide an OAuth token, to be on the next branch, and
to have no uncommitted changes, while the actual release train
information is not dependent on these checks.
This commit introduces a new command called `ng-dev release info` that
can be used to retrieve relase information without the aforementioned
requirements. Note that this command provides more detailed information
about release branches than the `ng-dev caretaker check` command (which
also requires on authentication as a side note). The `release info`
command also prints active LTS branches for example.
PR Close#42644
Paul Gschwendtner