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] <support@github.com>

Author: dependabot[bot]

esa-maven-plugin/pom.xml

@@ -47,7 +47,7 @@
         <maven-archiver.version>3.6.5</maven-archiver.version>
         <maven-bundle-plugin.version>5.1.9</maven-bundle-plugin.version>
         <maven-invoker-plugin.version>3.9.1</maven-invoker-plugin.version>
-        <maven-plugin-testing-harness.version>3.3.0</maven-plugin-testing-harness.version>
+        <maven-plugin-testing-harness.version>3.4.0</maven-plugin-testing-harness.version>
         <org.apache.aries.util.version>1.1.3</org.apache.aries.util.version>
         <plexus-archiver.version>4.10.3</plexus-archiver.version>
         <plexus-container-default.version>2.1.1</plexus-container-default.version>