fix upload

.github/workflows/ci-cd.yml

@@ -14,11 +14,7 @@ jobs:
     container:
       image: python:2.7.18-buster
     steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
+    - uses: actions/checkout@v4
     - name: Install dependencies
       run: |
         python -m pip install -r requirements.txt  && \
@@ -39,7 +35,7 @@ jobs:
       matrix:
         python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
@@ -64,7 +60,7 @@ jobs:
       - Test
       - Test-python-27
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
@@ -73,18 +69,20 @@ jobs:
       run: |
         python -m pip install coverage codecov
     - name: Download coverage artifacts
-      run: |
-        for version in 2.7 3.7 3.8 3.9 3.10 3.11 3.12; do
-          echo "Downloading coverage for Python $version"
-          actions/download-artifact@v4 --name coverage-$version --path ./coverage/$version
-        done
+      uses: actions/download-artifact@v4
+      with:
+        pattern: coverage-*
+        merge-multiple: true
     - name: Combine coverage reports
       run: |
-        coverage combine ./coverage
+        ls -lashR coverage.xml
+        coverage combine
         coverage report
-        coverage xml
+        coverage html --skip-covered --skip-empty
+
+        coverage report --format=markdown >> $GITHUB_STEP_SUMMARY
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         file: ./coverage.xml
   mypy: