This commit introduces three new scripts:
- `release.sh` To be run by a user on their local machine to preview and
create a new release (tag + push)
- `check_commit_metadata.sh` For e.g. detecting breaking changes
- `genereate_release_notes.sh` To display the generated release notes,
used for previews and in `publish_release.sh`
The `release.sh` script can be run without arguments, and it will
automatically determine if we're to do a patch or minor release. A minor
release can be forced via `--minor` flag.
Breaking changes can be annotated either via commit/merge title prefix
(`feat!:`, `feat(api)!:`), or by adding the `release/breaking` label to
the PR that was merged (on GitHub).
Related #5233
