utils/update-rust: fix MIT hash

The LICENSE-MIT file has changed.
Commit 432aef05 fixed it for rust package but forgot
the update-rust script.

Signed-off-by: El Mehdi YOUNES <elmehdi.younes@smile.fr>
Signed-off-by: Julien Olivain <ju.o@free.fr>

utils/update-rust

@@ -62,7 +62,7 @@ RUST_DIST_URL = "https://static.rust-lang.org/dist"
 
 LICENSES = {
     "APACHE": "62c7a1e35f56406896d7aa7ca52d0cc0d272ac022b5d2796e7d6905db8a3636a",
-    "MIT": "23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3",
+    "MIT": "b71bd43a069ca0641a9ecfe585ca7b3c53b5cc1608f8b68321168698e28b5ea1",
 }