Update plugin spotless to v7.2.1

Author: renovate[bot]

gradle/libs.versions.toml

@@ -7,6 +7,6 @@ coroutines-test = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-test", ve
 
 [plugins]
 kotlin = { id = "org.jetbrains.kotlin.multiplatform", version = "2.2.0" }
-spotless = { id = "com.diffplug.spotless", version = "7.2.0" }
+spotless = { id = "com.diffplug.spotless", version = "7.2.1" }
 publish = { id = "com.vanniktech.maven.publish", version = "0.34.0" }
 dokka = { id = "org.jetbrains.dokka", version = "2.0.0" }