Bump org.codehaus.mojo:exec-maven-plugin in /jvm-packages/xgboost4j

Bumps [org.codehaus.mojo:exec-maven-plugin](https://github.com/mojohaus/exec-maven-plugin) from 3.3.0 to 3.4.1.
- [Release notes](https://github.com/mojohaus/exec-maven-plugin/releases)
- [Commits](mojohaus/exec-maven-plugin@3.3.0...3.4.1)

---
updated-dependencies:
- dependency-name: org.codehaus.mojo:exec-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

jvm-packages/xgboost4j/pom.xml

@@ -82,7 +82,7 @@
           <plugin>
               <artifactId>exec-maven-plugin</artifactId>
               <groupId>org.codehaus.mojo</groupId>
-              <version>3.3.0</version>
+              <version>3.4.1</version>
               <executions>
                   <execution>
                       <id>native</id>