Bump Maven version to 3.9.12 (#221)

Co-authored-by: Jenkins Infra Bot (updatecli) <60776566+jenkins-infra-bot@users.noreply.github.com>

Author: jenkins-infra-updatecli[bot]

Dockerfile

@@ -136,7 +136,7 @@ RUN update-alternatives --install /usr/bin/java java "${JAVA_HOME}"/bin/java 100
   && java -version
 
 ## Maven is required for Debian packaging step (at least)
-ARG MAVEN_VERSION=3.9.11
+ARG MAVEN_VERSION=3.9.12
 RUN curl --fail --silent --location --show-error --output "/tmp/apache-maven-${MAVEN_VERSION}-bin.tar.gz" \
   "https://archive.apache.org/dist/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz" \
   && tar zxf "/tmp/apache-maven-${MAVEN_VERSION}-bin.tar.gz" -C /usr/share/ \

cst.yml

@@ -81,4 +81,4 @@ commandTests:
   - name: Check that `maven` and `java` are present in the PATH and default to JDK 21 and 3.9.11
     command: "mvn"
     args: ["-v"]
-    expectedOutput: ["Java version: 21.", 3.9.11]
+    expectedOutput: ["Java version: 21.", 3.9.12]