buf 1.42.0

[BrewTestBot]

Created by brew bump

---

Created with brew bump-formula-pr.

release notes

- Add support for custom lint and breaking change plugins. See [our launch blog post](https://buf.build/blog/buf-custom-lint-breaking-change-plugins) for more details!
- Add `buf dep graph --format` flag that defaults to `dot`, and adds the option `json`, to print the dependency graph in JSON format.
- Fix bugs in `buf format` where trailing comments on commas in message literals were not properly propagated to the formatted proto, empty message literals were not properly indented, and compound strings in options added an extra newline before trailing commas.

[github-actions]

🤖 An automated task has requested bottles to be published to this PR.