Bump org.apache.maven.plugin-testing:maven-plugin-testing-harness

Bumps org.apache.maven.plugin-testing:maven-plugin-testing-harness from 3.3.0 to 3.4.0.

---
updated-dependencies:
- dependency-name: org.apache.maven.plugin-testing:maven-plugin-testing-harness
  dependency-version: 3.4.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -157,7 +157,7 @@ under the License.
     <dependency>
       <groupId>org.apache.maven.plugin-testing</groupId>
       <artifactId>maven-plugin-testing-harness</artifactId>
-      <version>3.3.0</version>
+      <version>3.4.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>