Update dependency com.diffplug.spotless to v8.9.0 (#112)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -16,7 +16,7 @@ android-minSdk = "24"
 android-compileSdk = "37"
 android-targetSdk = "36"
 vanniktechMavenPublish = "0.37.0"
-spotless = "8.8.0"
+spotless = "8.9.0"
 detekt = "1.23.8"
 bcv = "0.18.1"
 dokka = "2.2.0"