Update DBUS installation step to include package update

Author: hovancik

.github/workflows/tests.yml

@@ -19,7 +19,7 @@ jobs:
       if: matrix.os == 'ubuntu-latest'
       run: |
         export DISPLAY=:0
-        sudo apt install dbus-x11
+        sudo apt update && sudo apt install dbus-x11
         machineId=$(cat /var/lib/dbus/machine-id)
         mkdir -p /home/runner/.dbus
         mkdir -p /home/runner/.dbus/session-bus/