Update to JDK11

pom.xml

@@ -4,7 +4,7 @@
 
   <groupId>cern.ics.swinfra</groupId>
   <artifactId>mvn-dind</artifactId>
-  <version>3.5.3-19.0.3-jdk8</version>
+  <version>3.5.3-19.3.0-jdk11/version>
 
   <description>A Maven + Docker DIND image to build images.</description>
 
@@ -54,7 +54,7 @@
 			<repository>gitlab-registry.cern.ch/industrial-controls/sw-infra/mvn-dind</repository>
 			<tag>${project.version}</tag>
 			<buildArgs>
-			  <FROM_IMAGE>maven:3.5.3-jdk-8</FROM_IMAGE>
+			  <FROM_IMAGE>maven:3.5.3-jdk-11</FROM_IMAGE>
 			  <DOCKER_VERSION>5:19.03.0~3-0~debian-stretch</DOCKER_VERSION>
 			  <DOCKER_ARCH>amd64</DOCKER_ARCH>
 			</buildArgs>