build(deps): bump unified-lint-rule from 2.1.2 to 3.0.0

Bumps [unified-lint-rule](https://github.com/remarkjs/remark-lint) from 2.1.2 to 3.0.0.
- [Release notes](https://github.com/remarkjs/remark-lint/releases)
- [Changelog](https://github.com/remarkjs/remark-lint/blob/3.0.0/history.md)
- [Commits](https://github.com/remarkjs/remark-lint/commits/3.0.0)

---
updated-dependencies:
- dependency-name: unified-lint-rule
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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