Fix docker compose context for TMSS lofar sibling service

SAS/TMSS/deploy/tmss/docker-compose.yml

@@ -231,7 +231,7 @@ services:
 #    container_name: tmss_lofar2_siblings
 #    image: tmss_lofar2_siblings
 #    build:
-#      context: ./app
+#      context: ../app
 #      dockerfile: Dockerfile
 #      args:
 #        SOURCE_IMAGE: ${SOURCE_IMAGE}