HTML coverage: reduce folder by one level

.github/workflows/regression-tests.yml

@@ -90,7 +90,7 @@ jobs:
         # Create some reports
         coverage report
         coverage xml -o coverage.xml
-        coverage html --directory ./coverage/coverage
+        coverage html --directory ./coverage
     - name: Upload test restults and coverage as an artifact
       uses: actions/upload-artifact@v4
       with:
@@ -139,7 +139,7 @@ jobs:
     - uses: actions/download-artifact@v4
       with:
         merge-multiple: true
-    - name: See what we've got
+    - name: See what we've got and merge artifacts
       run: |
         ls -la
         mkdir pages