Upgrade rust/crates/futures-executor to 0.3.13

Test: make
Change-Id: Id9635913c93108e22f4ebe40f5e0ce1ac9a2708c
diff --git a/METADATA b/METADATA
index bd72b7c..75a29b9 100644
--- a/METADATA
+++ b/METADATA
@@ -7,13 +7,13 @@
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/futures-executor/futures-executor-0.3.12.crate"
+    value: "https://static.crates.io/crates/futures-executor/futures-executor-0.3.13.crate"
   }
-  version: "0.3.12"
+  version: "0.3.13"
   license_type: NOTICE
   last_upgrade_date {
     year: 2021
-    month: 2
-    day: 9
+    month: 4
+    day: 1
   }
 }