sudo-ifying

.github/workflows/python-tests.yml

@@ -18,7 +18,12 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install system dependencies
-      run: apt-get install python3-gi
+      run: |
+        sudo apt-get update \
+        && sudo apt-get install -y \
+          python-dbus python-gobject \
+          python3-dbus python3-gi \
+        && sudo rm -rf /var/lib/apt/lists/*
     - name: Install python dependencies
       run: |
         python3 -m pip install --upgrade pip