dependabot: bump com.diffplug.spotless from 6.24.0 to 6.25.0 (#1184)

Bumps com.diffplug.spotless from 6.24.0 to 6.25.0.

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -66,7 +66,7 @@ buildscript {
 
 plugins {
     id 'com.netflix.nebula.ospackage' version "11.5.0"
-    id "com.diffplug.spotless" version "6.24.0"
+    id "com.diffplug.spotless" version "6.25.0"
     id 'java-library'
     id 'org.gradle.test-retry' version '1.5.7'
 }