Updates the Bazel NodeJS rules to v4.0.0-beta.0. This is necessary
so that the Angular components repo can update, and it's generally
good to stay as up-to-date as possible with the Bazel rules as it's
easy to fall behind, and updating early allows us to discover issues
affecting our tooling earlier (where they are easier to address due to
e.g. potential breaking change policy).
PR Close#42760
Move the release notes tooling under its own directory under release rather than
within publish, in preparation to have a release note generation command for ad-hoc
release note generation.
PR Close#42225
Paul Gschwendtner
Joey Perrott