Bump com.diffplug.spotless:spotless-plugin-gradle from 5.6.1 to 8.2.1

Bumps [com.diffplug.spotless:spotless-plugin-gradle](https://github.com/diffplug/spotless) from 5.6.1 to 8.2.1.
- [Release notes](https://github.com/diffplug/spotless/releases)
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](diffplug/spotless@gradle/5.6.1...gradle/8.2.1)

---
updated-dependencies:
- dependency-name: com.diffplug.spotless:spotless-plugin-gradle
  dependency-version: 8.2.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

buildSrc/build.gradle.kts

@@ -20,7 +20,7 @@
 plugins {
   `java-gradle-plugin`
   groovy
-  id("com.diffplug.spotless") version "5.6.1"
+  id("com.diffplug.spotless") version "8.2.1"
 }
 
 // Define the set of repositories required to fetch and enable plugins.
@@ -49,7 +49,7 @@ dependencies {
 
   runtimeOnly("com.google.protobuf:protobuf-gradle-plugin:0.8.13")                                         // Enable proto code generation
   runtimeOnly("com.github.davidmc24.gradle.plugin:gradle-avro-plugin:1.9.1")                               // Enable Avro code generation. Version 1.1.0 is the last supporting avro 1.10.2
-  runtimeOnly("com.diffplug.spotless:spotless-plugin-gradle:5.6.1")                                        // Enable a code formatting plugin
+  runtimeOnly("com.diffplug.spotless:spotless-plugin-gradle:8.2.1")                                        // 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("net.linguica.gradle:maven-settings-plugin:0.5")
   runtimeOnly("gradle.plugin.io.pry.gradle.offline_dependencies:gradle-offline-dependencies-plugin:0.5.0") // Enable creating an offline repository