lib: compiler_builtins-rust: Update for Rust 1.82 support

Edition was set to 2018 for this library as of upstream commit
fdc1a87f471141de366045a212386af0cd83d44d.

Bug: None
Test: build generic-arm64-virt-test-debug with Rust 1.82 toolchain
Change-Id: Ie1ef7d9d1cbd14dcca475a9a915df9bcf1ec71f6