[bazel] Use default Rust toolchain

Author: p0deje

MODULE.bazel

@@ -323,12 +323,11 @@ use_repo(ruby, "bundle", "ruby", "ruby_toolchains")
 register_toolchains("@ruby_toolchains//:all")
 
 rust = use_extension("@rules_rust//rust:extensions.bzl", "rust")
-rust.toolchain(
-    edition = "2021",
-    versions = ["1.76.0"],
-)
+rust.toolchain()
 use_repo(rust, "rust_toolchains")
 
+register_toolchains("@rust_toolchains//:all")
+
 crate = use_extension("@rules_rust//crate_universe:extension.bzl", "crate")
 crate.from_cargo(
     name = "crates",