Update plugin spotless to v8.5.1 (#337)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle/libs.versions.toml

@@ -21,6 +21,6 @@ mavenPublish-gradle-plugin = { module = "com.vanniktech:gradle-maven-publish-plu
 
 [plugins]
 buildconfig = { id = "com.github.gmazzo.buildconfig", version = "6.0.9" }
-spotless = { id = "com.diffplug.spotless", version = "8.5.0" }
+spotless = { id = "com.diffplug.spotless", version = "8.5.1" }
 dokka = { id = "org.jetbrains.dokka", version = "2.2.0" }
 burst-kotlin = { id = "app.cash.burst.kotlin" }