Adds pytest coverage comment/badge to GHA

.github/workflows/build_and_test_cli.yml

@@ -69,3 +69,24 @@ jobs:
         ls ./output
         # assert DICOM files exist
         [ -f "./output/IM_0001.dcm" ] && echo "Output DICOM file exists" || exit 1
+
+    - name: Build pytest coverage file
+      run: |
+        pytest --junitxml=pytest.xml --cov-report=term-missing:skip-covered --cov=nii2dcm tests/ | tee pytest-coverage.txt ; echo $?
+
+    - name: Pytest coverage comment
+      uses: MishaKav/pytest-coverage-comment@main
+      with:
+        pytest-coverage-path: ./pytest-coverage.txt
+        junitxml-path: ./pytest.xml
+
+    - name: Update Coverage Badge
+      uses: schneegans/dynamic-badges-action@v1.7.0
+      with:
+        auth: ${{ secrets.PYTEST_COVERAGE_COMMENT }}
+        gistID: 57ef8057d04f67dbe6e64df410b83079
+        filename: nii2dcm-pytest-coverage-comment.json
+        label: Coverage Report
+        message: ${{ steps.coverageComment.outputs.coverage }}
+        color: ${{ steps.coverageComment.outputs.color }}
+        namedLogo: python