Add newline to docker file to trigger changeset

Author: christophstrobl

ci/openjdk8-mongodb-5.0/Dockerfile

@@ -13,3 +13,4 @@ RUN apt-get update ; \
 	apt-get install -y mongodb-org=5.0.0 mongodb-org-server=5.0.0 mongodb-org-shell=5.0.0 mongodb-org-mongos=5.0.0 mongodb-org-tools=5.0.0 ; \
 	apt-get clean; \
 	rm -rf /var/lib/apt/lists/*;
+