Debug coverage files not being uploaded.

Author: domdfcoding

.github/workflows/python_ci_linux.yml

@@ -73,6 +73,11 @@ jobs:
         if: steps.setup-python.outcome == 'success'
         run: python -m tox -e "${{ matrix.config.testenvs }}" -s false
 
+      - name: (Debug) show file structure
+        id: show
+        run: ls -hal | grep .coverage
+        continue-on-error: true
+
       - name: "Upload Coverage 🚀"
         uses: actions/upload-artifact@v4
         if: ${{ always() && steps.setup-python.outcome == 'success' }}