Update dependency com.diffplug.spotless:spotless-plugin-gradle to v6.…

…23.0 (opensearch-project#206)

Signed-off-by: mend-for-github-com[bot] <mend-for-github-com[bot]@users.noreply.github.com>
Co-authored-by: mend-for-github-com[bot] <50673670+mend-for-github-com[bot]@users.noreply.github.com>

build.gradle

@@ -69,7 +69,7 @@ buildscript {
 
     dependencies {
         classpath "org.opensearch.gradle:build-tools:${opensearch_version}"
-        classpath "com.diffplug.spotless:spotless-plugin-gradle:6.22.0"
+        classpath "com.diffplug.spotless:spotless-plugin-gradle:6.23.0"
         classpath "com.github.form-com.diff-coverage-gradle:diff-coverage:0.9.5"
     }
 }