Bump com.diffplug.spotless from 6.2.0 to 6.3.0 (#2180)

Bumps com.diffplug.spotless from 6.2.0 to 6.3.0.

---
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

@@ -48,7 +48,7 @@ plugins {
   id 'lifecycle-base'
   id 'opensearch.docker-support'
   id 'opensearch.global-build-info'
-  id "com.diffplug.spotless" version "6.2.0" apply false
+  id "com.diffplug.spotless" version "6.3.0" apply false
 }
 
 apply from: 'gradle/build-complete.gradle'