Bump spotless-maven-plugin from 2.17.3 to 2.17.4 (jenkinsci#5903)

Author: dependabot[bot]

pom.xml

@@ -101,7 +101,7 @@ THE SOFTWARE.
 
     <access-modifier.version>1.25</access-modifier.version>
     <junit.jupiter.version>5.8.1</junit.jupiter.version>
-    <spotless.version>2.17.3</spotless.version>
+    <spotless.version>2.17.4</spotless.version>
   </properties>
 
   <!-- Note that the 'repositories' and 'pluginRepositories' blocks below are actually copy-pasted