Bump spotless-maven-plugin from 2.13.0 to 2.22.1 (#78)

Bumps [spotless-maven-plugin](https://github.com/diffplug/spotless) from 2.13.0 to 2.22.1.
- [Release notes](https://github.com/diffplug/spotless/releases)
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](diffplug/spotless@lib/2.13.0...lib/2.22.1)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -168,7 +168,7 @@
             <plugin>
                 <groupId>com.diffplug.spotless</groupId>
                 <artifactId>spotless-maven-plugin</artifactId>
-                <version>2.13.0</version>
+                <version>2.22.1</version>
                 <configuration>
                     <java>
                         <googleJavaFormat />