build(deps): bump github.com/bufbuild/buf from 1.42.0 to 1.43.0 in /t…

…ools (#4587)

* build(deps): bump github.com/bufbuild/buf in /tools

Bumps [github.com/bufbuild/buf](https://github.com/bufbuild/buf) from 1.42.0 to 1.43.0.
- [Release notes](https://github.com/bufbuild/buf/releases)
- [Changelog](https://github.com/bufbuild/buf/blob/main/CHANGELOG.md)
- [Commits](bufbuild/buf@v1.42.0...v1.43.0)

---
updated-dependencies:
- dependency-name: github.com/bufbuild/buf
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

* Run make gen with the new buf version

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jakub Hrozek <jakub@stacklok.com>