Upgrade rust/crates/proc-macro-error-attr to 1.0.4

Test: make
Change-Id: I1b773559909dad75543a4d01fbadb69aaa9c05e8
diff --git a/METADATA b/METADATA
index cdd4435..0864788 100644
--- a/METADATA
+++ b/METADATA
@@ -7,13 +7,13 @@
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/proc-macro-error-attr/proc-macro-error-attr-1.0.2.crate"
+    value: "https://static.crates.io/crates/proc-macro-error-attr/proc-macro-error-attr-1.0.4.crate"
   }
-  version: "1.0.2"
+  version: "1.0.4"
   license_type: NOTICE
   last_upgrade_date {
     year: 2020
-    month: 5
-    day: 6
+    month: 9
+    day: 29
   }
 }