Bump build-helper-maven-plugin from 3.3.0 to 3.4.0

Bumps [build-helper-maven-plugin](https://github.com/mojohaus/build-helper-maven-plugin) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/mojohaus/build-helper-maven-plugin/releases)
- [Commits](https://github.com/mojohaus/build-helper-maven-plugin/compare/build-helper-maven-plugin-3.3.0...3.4.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index b406672..588c2c9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -497,7 +497,7 @@
           <plugin>
             <groupId>org.codehaus.mojo</groupId>
             <artifactId>build-helper-maven-plugin</artifactId>
-            <version>3.3.0</version>
+            <version>3.4.0</version>
             <executions>
               <execution>
                 <id>add-test-source</id>