chore(deps): bump semver, @actions/github and eslint

Removes [semver](https://github.com/npm/node-semver). It's no longer used after updating ancestor dependencies [semver](https://github.com/npm/node-semver), [@actions/github](https://github.com/actions/toolkit/tree/HEAD/packages/github) and [eslint](https://github.com/eslint/eslint). These dependencies need to be updated together.


Removes `semver`

Updates `@actions/github` from 2.1.1 to 5.1.1
- [Changelog](https://github.com/actions/toolkit/blob/main/packages/github/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/github)

Updates `eslint` from 6.8.0 to 8.43.0
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](eslint/eslint@v6.8.0...v8.43.0)

---
updated-dependencies:
- dependency-name: semver
  dependency-type: indirect
- dependency-name: "@actions/github"
  dependency-type: direct:production
- dependency-name: eslint
  dependency-type: direct:development
...

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

Author: dependabot[bot]