Bump memory to 4G.

See #3767

Author: mp911de

ci/test.sh

@@ -7,7 +7,7 @@ mkdir -p /tmp/jenkins-home/.m2/.develocity
 
 export JENKINS_USER=${JENKINS_USER_NAME}
 
-MAVEN_OPTS="-Duser.name=${JENKINS_USER} -Duser.home=/tmp/jenkins-home" \
+MAVEN_OPTS="-Xmx4G -Duser.name=${JENKINS_USER} -Duser.home=/tmp/jenkins-home" \
   ./mvnw -s settings.xml  \
   -P${PROFILE} clean dependency:list test -Dsort -U -B -Dmaven.repo.local=/tmp/jenkins-home/.m2/spring-data-jpa -Ddevelocity.storage.directory=/tmp/jenkins-home/.develocity-root