Merge pull request #4411 from kubernetes-client/dependabot/maven/com.diffplug.spotless-spotless-maven-plugin-3.1.0

build(deps): bump com.diffplug.spotless:spotless-maven-plugin from 3.0.0 to 3.1.0

Author: k8s-ci-robot

pom.xml

@@ -348,7 +348,7 @@
         <plugin>
           <groupId>com.diffplug.spotless</groupId>
           <artifactId>spotless-maven-plugin</artifactId>
-          <version>3.0.0</version>
+          <version>3.1.0</version>
         </plugin>
         <plugin>
           <groupId>org.apache.felix</groupId>