Avoid duplication of packages in sync container

sync/generate-gradle.py

@@ -371,13 +371,8 @@ dependencies {
 
 tasks.register("downloadDependencies") {
     doLast {
-        deps.forEach { (conf, dep) ->
-            conf.files.forEach { file ->
-                copy {
-                    from(file)
-                    into("data/")
-                }
-            }
+        deps.forEach { (conf, _) ->
+            conf.files
         }
     }
 }