docker-compose.yaml: add lava-pengutronix runtime

Add runtime argument 'lava-pengutronix' to 'scheduler-lava' service.
This will enable the pipeline to run and submit jobs to Pengutronix LAVA
lab. This configuration file is still used by the staging environment.

Signed-off-by: Paweł Wieczorek <[email protected]>

Author: pawiecz

docker-compose.yaml

@@ -91,6 +91,7 @@ services:
       - 'lava-baylibre'
       - 'lava-qualcomm'
       - 'lava-cip'
+      - 'lava-pengutronix'
     extra_hosts:
       - "host.docker.internal:host-gateway"