Allow edition 2024 (#259)

* Allow protobuf edition 2024

There are no relevant code generation changes for Edition 2024.  This
change just bumps the supported range so that Edition 2024 files
successfully parse.

bump version 4.0.0 -> 4.0.1

Bump module versions for 4.0.0 release

Update version to 3.21.4

Adopt protobuf's .bazelrc to simplify cross-compilation

Merge pull request #144 from dibenede/prepare-release

Bump version to 3.21.2

Merge pull request #140 from dibenede/release-bugs

Fix typos in asserts and add LICENSE-asserts.md to package.json

Merge pull request #123 from dibenede/main

Update package-lock.json for version bump to v3.21.0