chore(deps): bump jenkins/ssh-agent from 6.18.0-jdk21 to 6.23.0-jdk21 in /dockerfiles/maven

dockerfiles/maven/Dockerfile

@@ -1,4 +1,4 @@
-FROM jenkins/ssh-agent:6.18.0-jdk21 as ssh-agent
+FROM jenkins/ssh-agent:6.23.0-jdk21 as ssh-agent
 
 # ca-certificates because curl uses certificates from ca-certificates
 RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates curl && apt-get clean && \