Bump com.diffplug.spotless:spotless-maven-plugin from 3.3.0 to 3.4.0

Bumps [com.diffplug.spotless:spotless-maven-plugin](https://github.com/diffplug/spotless) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/diffplug/spotless/releases)
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](diffplug/spotless@lib/3.3.0...maven/3.4.0)

---
updated-dependencies:
- dependency-name: com.diffplug.spotless:spotless-maven-plugin
  dependency-version: 3.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -972,7 +972,7 @@ under the License.
     <invoker.streamLogsOnFailures>true</invoker.streamLogsOnFailures>
     <version.sisu-maven-plugin>1.0.0</version.sisu-maven-plugin>
     <version.plexus-utils>4.0.3</version.plexus-utils>
-    <version.spotless-maven-plugin>3.3.0</version.spotless-maven-plugin>
+    <version.spotless-maven-plugin>3.4.0</version.spotless-maven-plugin>
     <version.palantirJavaFormat>2.90.0</version.palantirJavaFormat>
     <!-- DO NOT UPGRADE to 4: incompatible with Maven 3 -->
     <version.plexus-xml>3.0.1</version.plexus-xml>