Bump com.diffplug.spotless:spotless-plugin-gradle from 5.6.1 to 6.23.2

Bumps [com.diffplug.spotless:spotless-plugin-gradle](https://github.com/diffplug/spotless) from 5.6.1 to 6.23.2.
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](https://github.com/diffplug/spotless/commits)

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

Signed-off-by: dependabot[bot] <[email protected]>

buildSrc/build.gradle.kts

@@ -46,7 +46,7 @@ dependencies {
 
   runtimeOnly("com.google.protobuf:protobuf-gradle-plugin:0.8.13")                                         // Enable proto code generation
   runtimeOnly("com.github.davidmc24.gradle-avro-plugin:gradle-avro-plugin:0.16.0")                         // Enable Avro code generation
-  runtimeOnly("com.diffplug.spotless:spotless-plugin-gradle:5.6.1")                                        // Enable a code formatting plugin
+  runtimeOnly("com.diffplug.spotless:spotless-plugin-gradle:6.23.2")                                        // Enable a code formatting plugin
   runtimeOnly("gradle.plugin.com.dorongold.plugins:task-tree:1.5")                                         // Adds a 'taskTree' task to print task dependency tree
   runtimeOnly("gradle.plugin.com.github.johnrengelman:shadow:7.1.1")                                       // Enable shading Java dependencies
   runtimeOnly("net.linguica.gradle:maven-settings-plugin:0.5")