feat: Add release.sh script and detect breaking changes (#5366)

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

.github/workflows/release.yaml

@@ -157,7 +157,7 @@ jobs:
 
       - name: Publish release
         run: |
-          ./scripts/publish_release.sh \
+          ./scripts/release/publish.sh \
             ${{ (github.event.inputs.dry_run || github.event.inputs.snapshot) && '--dry-run' }} \
             ./build/*_installer.exe \
             ./build/*.zip \