Upgrade toolchain to 2024-12-19 (model-checking#3810)

Upgrade Rust toolchain to 2024-12-19.

Resolves model-checking#3795 

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under the terms of the Apache 2.0 and MIT licenses.

Author: zhassan-aws

rust-toolchain.toml

@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0 OR MIT
 
 [toolchain]
-channel = "nightly-2024-12-18"
+channel = "nightly-2024-12-19"
 components = ["llvm-tools", "rustc-dev", "rust-src", "rustfmt"]