Update spotless to v8.1.0 (#2749)

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

gradle/libs.versions.toml

@@ -30,7 +30,7 @@ moko-resources = "0.25.1"
 okhttp = "5.3.2"
 okio = "3.16.4"
 splitties = "3.0.0"
-spotless = "8.0.0"
+spotless = "8.1.0"
 telephoto = "0.18.0"
 xmlutil = "0.91.3"
 junit = "1.3.0"