chore(deps): bump com.diffplug.spotless:spotless-maven-plugin (#3065)

Bumps [com.diffplug.spotless:spotless-maven-plugin](https://github.com/diffplug/spotless) from 3.0.0 to 3.1.0.
- [Release notes](https://github.com/diffplug/spotless/releases)
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](diffplug/spotless@lib/3.0.0...lib/3.1.0)

---
updated-dependencies:
- dependency-name: com.diffplug.spotless:spotless-maven-plugin
  dependency-version: 3.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

operator-framework-bom/pom.xml

@@ -54,7 +54,7 @@
     <maven-gpg-plugin.version>3.2.8</maven-gpg-plugin.version>
     <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
     <maven-javadoc-plugin.version>3.12.0</maven-javadoc-plugin.version>
-    <spotless.version>3.0.0</spotless.version>
+    <spotless.version>3.1.0</spotless.version>
     <central-publishing-maven-plugin.version>0.9.0</central-publishing-maven-plugin.version>
   </properties>