Bump Bazel build to rustc 1.61.0
diff --git a/WORKSPACE b/WORKSPACE
index 793bf14..d0a16b8 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -14,7 +14,7 @@
 
 load("@rules_rust//rust:repositories.bzl", "rules_rust_dependencies", "rust_register_toolchains")
 
-RUST_VERSION = "1.60.0"
+RUST_VERSION = "1.61.0"
 
 rules_rust_dependencies()