gitea workflows: action.yaml qt test bug

.gitea/workflows/action.yaml

@@ -58,9 +58,21 @@ jobs:
   
           pip install -e .
 
+      - name: Install system dependencies for PySide6
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            libgl1 \
+            libegl1 \
+            libxkbcommon-x11-0 \
+            libdbus-1-3 \
+            libxcb-cursor0 \
+            libx11-xcb1
+
       - name: Run tests with pytest
         env:
           PYTEST_DISABLE_PLUGIN_AUTOLOAD: "1"
+          QT_QPA_PLATFORM: offscreen
         run: |
           source venv/bin/activate