Build(deps): bump @actions/github from 4.0.0 to 5.1.1 (#829)

* Build(deps): bump @actions/github from 4.0.0 to 5.1.1

Bumps [@actions/github](https://github.com/actions/toolkit/tree/HEAD/packages/github) from 4.0.0 to 5.1.1.
- [Release notes](https://github.com/actions/toolkit/releases)
- [Changelog](https://github.com/actions/toolkit/blob/main/packages/github/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/github)

---
updated-dependencies:
- dependency-name: "@actions/github"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

* update for @actions/github 5.1.1

* ci: add `pull-requests: write` to permissions

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ryo Ota <nwtgck@nwtgck.org>

.github/workflows/test.yml

@@ -6,6 +6,7 @@ on:
 permissions:
   statuses: write
   deployments: write
+  pull-requests: write
 
 jobs:
   build: # make sure build/ci work properly