Bump com.diffplug.spotless:spotless-maven-plugin from 3.4.0 to 3.5.1 (#1394)

Bumps [com.diffplug.spotless:spotless-maven-plugin](https://github.com/diffplug/spotless) from 3.4.0 to 3.5.1.
- [Release notes](https://github.com/diffplug/spotless/releases)
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](diffplug/spotless@maven/3.4.0...maven/3.5.1)

---
updated-dependencies:
- dependency-name: com.diffplug.spotless:spotless-maven-plugin
  dependency-version: 3.5.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -60,7 +60,7 @@
         <version.buildnumber.plugin>3.3.0</version.buildnumber.plugin>
         <version.checkstyle.plugin>3.6.0</version.checkstyle.plugin>
 
-        <version.com.diffplug.spotless>3.4.0</version.com.diffplug.spotless>
+        <version.com.diffplug.spotless>3.5.1</version.com.diffplug.spotless>
         <version.compiler.plugin>3.15.0</version.compiler.plugin>
         <version.com.github.os72.protoc.jar>3.11.4</version.com.github.os72.protoc.jar>
         <version.com.google.protobuf.protobuf.java.util>4.34.1</version.com.google.protobuf.protobuf.java.util>