Update CI properties.

See spring-projects#3229

Author: mp911de

ci/pipeline.properties

@@ -1,6 +1,6 @@
 # Java versions
-java.main.tag=17.0.8_7-jdk-focal
-java.next.tag=21_35-jdk-jammy
+java.main.tag=17.0.9_9-jdk-focal
+java.next.tag=21.0.1_12-jdk-jammy
 
 # Docker container images - standard
 docker.java.main.image=harbor-repo.vmware.com/dockerhub-proxy-cache/library/eclipse-temurin:${java.main.tag}
@@ -17,9 +17,11 @@ docker.redis.6.version=6.2.13
 
 # Supported versions of Cassandra
 docker.cassandra.3.version=3.11.16
+
 # Docker environment settings
 docker.java.inside.basic=-v $HOME:/tmp/jenkins-home
 docker.java.inside.docker=-u root -v /var/run/docker.sock:/var/run/docker.sock -v /usr/bin/docker:/usr/bin/docker -v $HOME:/tmp/jenkins-home
+
 # Credentials
 docker.registry=
 docker.credentials=hub.docker.com-springbuildmaster