Bump uhafner/autograding-github-action from 2.1.0 to 3.0.0

Bumps [uhafner/autograding-github-action](https://github.com/uhafner/autograding-github-action) from 2.1.0 to 3.0.0.
- [Release notes](https://github.com/uhafner/autograding-github-action/releases)
- [Commits](uhafner/autograding-github-action@v2.1.0...v3.0.0)

---
updated-dependencies:
- dependency-name: uhafner/autograding-github-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/reporting.yml

@@ -31,7 +31,7 @@ jobs:
         with:
           token: ${{secrets.CODECOV_TOKEN}}
       - name: Autograding
-        uses: uhafner/autograding-github-action@v2.1.0
+        uses: uhafner/autograding-github-action@v3.0.0
         with:
           TOKEN: ${{ secrets.GITHUB_TOKEN }}
           CONFIG: >