Bump com.diffplug.spotless:spotless-plugin-gradle from 7.2.1 to 8.0.0

Bumps [com.diffplug.spotless:spotless-plugin-gradle](https://github.com/diffplug/spotless) from 7.2.1 to 8.0.0.
- [Release notes](https://github.com/diffplug/spotless/releases)
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](diffplug/spotless@gradle/7.2.1...gradle/8.0.0)

---
updated-dependencies:
- dependency-name: com.diffplug.spotless:spotless-plugin-gradle
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

buildSrc/build.gradle.kts

@@ -15,7 +15,7 @@ dependencies {
 
   // Spotless dropped Java 8 support in version 2.33.0
   if (JavaVersion.current().isJava11Compatible) {
-    implementation("com.diffplug.spotless:spotless-plugin-gradle:7.2.1")
+    implementation("com.diffplug.spotless:spotless-plugin-gradle:8.0.0")
     implementation("io.github.cosmicsilence:gradle-scalafix:0.2.2")
   }
 }