Bump com.diffplug.spotless:spotless-plugin-gradle from 6.24.0 to 6.25…

….0 (#126)

build.gradle

@@ -7,7 +7,7 @@ buildscript {
             // Code formatting; defines targets "spotlessApply" and "spotlessCheck".
             // https://github.com/diffplug/spotless/tags ; see tags starting "gradle/"
             // Only works on JDK 11+.
-            classpath 'com.diffplug.spotless:spotless-plugin-gradle:6.24.0'
+            classpath 'com.diffplug.spotless:spotless-plugin-gradle:6.25.0'
         }
     }
 }