update build order.

build.py

 
 def packages_list():
     return [
+        #ORDER IS IMPORTANT
+        ("com.unity.shadergraph", os.path.join("com.unity.shadergraph")),
-        ("com.unity.shadergraph", os.path.join("com.unity.shadergraph")),
         ("com.unity.testframework.graphics", os.path.join("com.unity.testframework.graphics"))
     ]