Migrate Sponge, Libs to Kotlin DSL

worldedit-libs/build.gradle

@@ -1,3 +0,0 @@
-tasks.register("build") {
-    dependsOn(subprojects.collect { it.tasks.named("build") })
-}

worldedit-libs/build.gradle.kts

@@ -0,0 +1,3 @@
+tasks.register("build") {
+    dependsOn(subprojects.map { it.tasks.named("build") })
+}