Fix coverage reporting as codecov v1 was removed.

.github/workflows/test.yaml

@@ -126,21 +126,12 @@ jobs:
         python -m coverage xml -o coverage.xml -i
         python -m coverage report --skip-covered
 
-    - uses: codecov/codecov-action@v1
+    - uses: codecov/codecov-action@v2
       if: ${{ !cancelled() && contains(matrix['tox-env'], 'withcov') }}
       with:
         files: coverage.xml
         name: lnx-${{ matrix.python-version }}-${{ matrix.tox-env }}${{ matrix.noipv6 }}
         fail_ci_if_error: true
-        functionalities: gcov,search
-
-    - name: Publish to Coveralls
-      if: ${{ !cancelled() && contains(matrix['tox-env'], 'withcov') }}
-      continue-on-error: true
-      run: |
-        python -m coveralls -v
-      env:
-        COVERALLS_REPO_TOKEN: 'JFDTIRUVOQ8jCM3zcajrZALlpKXyiXGAX'
 
   static-checks:
     runs-on: ubuntu-20.04