Bump maven.version from 3.2.5 to 3.9.1

Bumps `maven.version` from 3.2.5 to 3.9.1.

Updates `maven-plugin-api` from 3.2.5 to 3.9.1
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.2.5...maven-3.9.1)

Updates `maven-model` from 3.2.5 to 3.9.1
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.2.5...maven-3.9.1)

Updates `maven-core` from 3.2.5 to 3.9.1
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.2.5...maven-3.9.1)

---
updated-dependencies:
- dependency-name: org.apache.maven:maven-plugin-api
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.maven:maven-model
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.maven:maven-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -220,7 +220,7 @@
     <jackson.version>2.14.2</jackson.version>
     <jdom.version>2.0.2</jdom.version>
     <surefire.version>3.0.0</surefire.version>
-    <maven.version>3.2.5</maven.version>
+    <maven.version>3.9.1</maven.version>
     <!--
       ! This controls the minimum java version
       ! and also the version which is used