Fix proc-macro-nested/METADATA am: ac50c4e764 am: fc9d0a0dcd

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/proc-macro-nested/+/1413756

Change-Id: Ice0cd4d02ec91b1da4bd673aa0fc265a3eb2a891
diff --git a/METADATA b/METADATA
index a328cee..67d5c26 100644
--- a/METADATA
+++ b/METADATA
@@ -6,8 +6,8 @@
     value: "https://crates.io/crates/proc-macro-nested"
   }
   url {
-    type: GIT
-    value: "https://github.com/dtolnay/proc-macro-hack"
+    type: ARCHIVE
+    value: "https://static.crates.io/crates/proc-macro-nested/proc-macro-nested-0.1.6.crate"
   }
   version: "0.1.6"
   license_type: NOTICE