Bump com.diffplug.spotless from 6.22.0 to 6.23.3

Bumps com.diffplug.spotless from 6.22.0 to 6.23.3.

---
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>

build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id "java"
     id "edu.wpi.first.GradleRIO" version "2023.4.3"
-    id 'com.diffplug.spotless' version '6.22.0'
+    id 'com.diffplug.spotless' version '6.23.3'
 }
 
 sourceCompatibility = JavaVersion.VERSION_11