Bump Java and Vault versions on CI.

ci/pipeline.properties

@@ -1,5 +1,5 @@
 # Java versions
-java.main.tag=17.0.3_7-jdk
+java.main.tag=17.0.13_11-jdk-focal
 
 # Docker container images - standard
 docker.java.main.image=eclipse-temurin:${java.main.tag}
@@ -9,7 +9,7 @@ docker.build.image.name=springci/spring-vault-openjdk17-vault:${java.main.tag}-$
 docker.image=${docker.build.image.name}
 
 # Supported versions of Vault
-docker.vault.version=1.11.1
+docker.vault.version=1.15.1
 
 # Docker environment settings
 docker.java.inside.basic=-v $HOME:/tmp/vault