Bump mavenVersion from 3.2.5 to 3.9.6

Bumps `mavenVersion` from 3.2.5 to 3.9.6.

Updates `org.apache.maven:maven-plugin-api` from 3.2.5 to 3.9.6
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.2.5...maven-3.9.6)

Updates `org.apache.maven:maven-core` from 3.2.5 to 3.9.6
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.2.5...maven-3.9.6)

Updates `org.apache.maven:maven-artifact` from 3.2.5 to 3.9.6
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.2.5...maven-3.9.6)

---
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-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.maven:maven-artifact
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -60,7 +60,7 @@ under the License.
   </distributionManagement>
 
   <properties>
-    <mavenVersion>3.2.5</mavenVersion>
+    <mavenVersion>3.9.6</mavenVersion>
     <junit5.version>5.10.2</junit5.version>
     <version.xmlunit>2.9.1</version.xmlunit>
     <project.build.outputTimestamp>2022-04-18T19:40:06Z</project.build.outputTimestamp>