Upgrade rust/crates/rand to 0.8.2

Test: make
Change-Id: I2131add04c4bbd0517a4e2bea853c76a551788ee
diff --git a/METADATA b/METADATA
index af9a0a8..f07b101 100644
--- a/METADATA
+++ b/METADATA
@@ -7,13 +7,13 @@
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/rand/rand-0.8.0.crate"
+    value: "https://static.crates.io/crates/rand/rand-0.8.2.crate"
   }
-  version: "0.8.0"
+  version: "0.8.2"
   license_type: NOTICE
   last_upgrade_date {
-    year: 2020
-    month: 12
-    day: 22
+    year: 2021
+    month: 1
+    day: 13
   }
 }