Update dependency org.apache.maven.plugin-testing:maven-plugin-testing-harness to v3

Author: renovate[bot]

pom.xml

@@ -273,7 +273,7 @@ under the License.
     <dependency>
       <groupId>org.apache.maven.plugin-testing</groupId>
       <artifactId>maven-plugin-testing-harness</artifactId>
-      <version>1.2</version>
+      <version>3.5.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>