Update itertools to 0.10.3

Test: cd external/rust/crates && atest --host -c
Change-Id: Ic4635782fb45eaa4b94696aa8a7b3c5dc1910fc3
diff --git a/METADATA b/METADATA
index ce650b4..ca38654 100644
--- a/METADATA
+++ b/METADATA
@@ -7,13 +7,13 @@
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/itertools/itertools-0.10.1.crate"
+    value: "https://static.crates.io/crates/itertools/itertools-0.10.3.crate"
   }
-  version: "0.10.1"
+  version: "0.10.3"
   license_type: NOTICE
   last_upgrade_date {
-    year: 2021
-    month: 6
-    day: 21
+    year: 2022
+    month: 3
+    day: 1
   }
 }