Update plugin spotless to v7

Author: renovate[bot]

gradle/libs.versions.toml

@@ -3,5 +3,5 @@ asm = { module = "org.ow2.asm:asm", version = "9.7.1" }
 
 [plugins]
 gradle-publish-plugin = { id = "com.gradle.plugin-publish", version = "1.3.1" }
-spotless = { id = "com.diffplug.spotless", version = "6.25.0" }
+spotless = { id = "com.diffplug.spotless", version = "7.0.2" }
 gradle-nexus-publish = { id = "io.github.gradle-nexus.publish-plugin", version = "2.0.0" }