Bump com.diffplug.spotless from 6.20.0 to 6.22.0 (#105)

Bumps com.diffplug.spotless from 6.20.0 to 6.22.0.

---
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.kts

@@ -14,7 +14,7 @@ plugins {
   eclipse
   idea
   id("org.ec4j.editorconfig") version "0.0.3"
-  id("com.diffplug.spotless") version "6.20.0"
+  id("com.diffplug.spotless") version "6.22.0"
 }
 
 buildscript {