Replace deprecated rust_repositories call in bazel WORKSPACE

This function is documented as deprecated in rules_rust.

    **Deprecated**: Use [rules_rust_dependencies](#rules_rust_dependencies)
    and [rust_register_toolchains](#rust_register_toolchains) directly.
diff --git a/WORKSPACE b/WORKSPACE
index 1e3fdf8..d0850e8 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -12,11 +12,13 @@
     ],
 )
 
-load("@rules_rust//rust:repositories.bzl", "rust_repositories")
+load("@rules_rust//rust:repositories.bzl", "rules_rust_dependencies", "rust_register_toolchains")
 
 RUST_VERSION = "1.60.0"
 
-rust_repositories(
+rules_rust_dependencies()
+
+rust_register_toolchains(
     version = RUST_VERSION,
 )