* Bump protoc_plugin from 21.1.2 to 22.0.0 (note, we did 22.0.1 instead)

Bumps [protoc_plugin](https://github.com/google/protobuf.dart) from 21.1.2 to 22.0.0.
- [Release notes](https://github.com/google/protobuf.dart/releases)
- [Commits](google/protobuf.dart@protoc_plugin-v21.1.2...protoc_plugin-v22.0.0)

---
updated-dependencies:
- dependency-name: protoc_plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* update protoc_plugin to 22.0.1 and protobuf to 4.0.0

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Carlos (Goodwine) <2022649+Goodwine@users.noreply.github.com>

This also clarifies the documentation on how loads work in the
entrypoint file.

Co-authored-by: Natalie Weizenbaum <nweiz@google.com>

…2570)

Since #2474, the _currentCallable property is not used anymore (except for restoring its state)

Co-authored-by: Natalie Weizenbaum <nweiz@google.com>

Previously this wouldn't update -dev changelogs if we were bumping a
more major version than the -dev version bumped.

See sass/sass#4078

Support empty custom properties

…2575)