build: bump @octokit/action from 6.1.0 to 8.0.4

Bumps [@octokit/action](https://github.com/octokit/action.js) from 6.1.0 to 8.0.4.
- [Release notes](https://github.com/octokit/action.js/releases)
- [Commits](octokit/action.js@v6.1.0...v8.0.4)

---
updated-dependencies:
- dependency-name: "@octokit/action"
  dependency-version: 8.0.4
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]