Update plugin spotless to v7.0.0 (#281)

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

gradle/libs.versions.toml

@@ -29,7 +29,7 @@ buildConfig = { id = "com.github.gmazzo.buildconfig", version = "5.5.1" }
 dokka = { id = "org.jetbrains.dokka", version = "2.0.0" }
 ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
 mavenPublish = { id = "com.vanniktech.maven.publish", version = "0.30.0" }
-spotless = { id = "com.diffplug.spotless", version = "7.0.0.BETA4" }
+spotless = { id = "com.diffplug.spotless", version = "7.0.0" }
 
 [libraries]
 autoService = { module = "com.google.auto.service:auto-service-annotations", version.ref = "autoService" }