Update CI properties.

See #544

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}