Bump com.diffplug.spotless:spotless-maven-plugin from 2.39.0 to 2.40.0

Bumps [com.diffplug.spotless:spotless-maven-plugin](https://github.com/diffplug/spotless) from 2.39.0 to 2.40.0.
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](diffplug/spotless@lib/2.39.0...lib/2.40.0)

---
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]>

Author: dependabot[bot]

pom.xml

@@ -93,7 +93,7 @@
     <asciidoctorj.diagram.version>2.2.13</asciidoctorj.diagram.version>
     <buildnumber.plugin.version>1.4</buildnumber.plugin.version>
     <jmh.version>1.37</jmh.version>
-    <spotless.version>2.39.0</spotless.version>
+    <spotless.version>2.40.0</spotless.version>
     <google-java-format.version>1.17.0</google-java-format.version>
     <jacoco.version>0.8.10</jacoco.version>
     <!-- for documentation -->