Added coverage for Docker GHA

.github/workflows/test-docker.yml

@@ -42,3 +42,26 @@ jobs:
         # The Pillow user in the docker container is UID 1000
         sudo chown -R 1000 $GITHUB_WORKSPACE
         docker run -v $GITHUB_WORKSPACE:/Pillow pythonpillow/${{ matrix.docker }}:${{ matrix.dockerTag }}
+        sudo chown -R runner $GITHUB_WORKSPACE
+
+    - name: After success
+      if: success()
+      run: |
+        pip install wheel
+        sudo apt-get install -qq ruby-dev
+        PATH="$PATH:~/.local/bin"
+        .travis/after_success.sh
+      env:
+        MATRIX_OS: ${{ matrix.os }}
+        COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
+
+    - name: Prepare coverage token
+      if: success() && github.repository == 'python-pillow/Pillow'
+      run: cp .github/codecov-upstream.yml .codecov.yml
+
+    - name: Upload coverage
+      if: success()
+      uses: codecov/codecov-action@v1
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        name: ${{ matrix.os }} Python ${{ matrix.python-version }}

.travis/after_success.sh

@@ -11,11 +11,12 @@ lcov --capture --directory . -b . --output-file coverage.info
 #  filter to remove system headers
 lcov --remove coverage.info '/usr/*' -o coverage.filtered.info
 #  convert to json
-gem install coveralls-lcov
+sudo gem install coveralls-lcov
 coveralls-lcov -v -n coverage.filtered.info > coverage.c.json
 
-coverage report
 pip install codecov
+coverage report
+
 pip install coveralls-merge
 coveralls-merge coverage.c.json
 if [[ $TRAVIS ]]; then