Fix coverage artifact upload for hidden files

Add include-hidden-files parameter to coverage artifact upload since .coverage.* files are hidden and not included by default in actions/upload-artifact@v4.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Signed-off-by: Rohan Devasthale <rdevasth@redhat.com>

Author: rd4398

.github/workflows/ci.yaml

@@ -49,6 +49,7 @@ jobs:
         with:
           name: coverage-${{ matrix.python }}
           path: .coverage.*
+          include-hidden-files: true
           if-no-files-found: ignore
 
   ruff: