Merge pull request networkit#1359 from fabratu/20251014_enable_coverage_pr

CI: Remove condition on coverage upload.

Author: fabratu

.github/workflows/ci.yml

@@ -357,12 +357,11 @@ jobs:
           coverage run -m unittest discover -v networkit/test
           coverage report
           coveralls --merge=core_build/networkit_cpp.json --output=$COVERALLS_DUMP_FILE
-      - name: Upload coverage
-        if: github.event_name == 'push' && github.ref == 'refs/heads/master'
-        run: |
-          cd ${{ github.workspace }}
-          . pyenv/bin/activate
-          python3 ${{ github.workspace }}/.github/workflows/scripts/upload_coverage.py
+      - name: Upload coverage to coveralls.io
+        uses: coverallsapp/github-action@v2
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ env.COVERALLS_DUMP_FILE }}
 
   linux-build-leak:
     name: "Linux (gcc-10): leak checks"