Fixed Python coverage on Docker GHA

.ci/after_success.sh

@@ -1,8 +1,12 @@
 #!/bin/bash
 
 # gather the coverage data
-pip install codecov
-coverage xml
+pip3 install codecov
+if [[ $MATRIX_DOCKER ]]; then
+  coverage xml --ignore-errors
+else
+  coverage xml
+fi
 
 if [[ $TRAVIS ]]; then
     codecov

.github/workflows/test-docker.yml

@@ -41,16 +41,21 @@ jobs:
       run: |
         # 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 }}
+        docker run --name pillow_container  -v $GITHUB_WORKSPACE:/Pillow pythonpillow/${{ matrix.docker }}:${{ matrix.dockerTag }}
         sudo chown -R runner $GITHUB_WORKSPACE
 
     - name: After success
       if: success()
       run: |
         PATH="$PATH:~/.local/bin"
+        docker start pillow_container
+        pil_path=`docker exec pillow_container /vpy3/bin/python -c 'import os, PIL;print(os.path.realpath(os.path.dirname(PIL.__file__)))'`
+        docker stop pillow_container
+        sudo mkdir -p $pil_path
+        sudo cp src/PIL/*.py $pil_path
         .ci/after_success.sh
       env:
-        COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
+        MATRIX_DOCKER: ${{ matrix.docker }}
 
     - name: Prepare coverage token
       if: success() && github.repository == 'python-pillow/Pillow'