Update rules_rust usage to match https://github.com/bazelbuild/rules_rust/commit/cd3e53e9b8555543071ea109218baf41fc4b88f7.

PiperOrigin-RevId: 575241905

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index d0d66ec..37994f8 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -174,8 +174,8 @@
 
 http_archive(
     name = "rules_rust",
-    sha256 = "4a9cb4fda6ccd5b5ec393b2e944822a62e050c7c06f1ea41607f14c4fdec57a2",
-    urls = ["https://github.com/bazelbuild/rules_rust/releases/download/0.25.1/rules_rust-v0.25.1.tar.gz"],
+    sha256 = "9ecd0f2144f0a24e6bc71ebcc50a1ee5128cedeceb32187004532c9710cb2334",
+    urls = ["https://github.com/bazelbuild/rules_rust/releases/download/0.29.1/rules_rust-v0.29.1.tar.gz"],
 )
 
 load("@rules_rust//rust:repositories.bzl", "rules_rust_dependencies", "rust_register_toolchains")