chore(deps): bump @octokit/request-error and @actions/artifact

Bumps [@octokit/request-error](https://github.com/octokit/request-error.js) to 5.1.1 and updates ancestor dependency [@actions/artifact](https://github.com/actions/toolkit/tree/HEAD/packages/artifact). These dependencies need to be updated together.


Updates `@octokit/request-error` from 2.1.0 to 5.1.1
- [Release notes](https://github.com/octokit/request-error.js/releases)
- [Commits](octokit/request-error.js@v2.1.0...v5.1.1)

Updates `@actions/artifact` from 2.3.2 to 4.0.0
- [Changelog](https://github.com/actions/toolkit/blob/main/packages/artifact/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/@actions/[email protected]/packages/artifact)

---
updated-dependencies:
- dependency-name: "@octokit/request-error"
  dependency-version: 5.1.1
  dependency-type: indirect
- dependency-name: "@actions/artifact"
  dependency-version: 4.0.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]