fix(deps): update dependency rust to v1.81.0 (#274)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

rust-toolchain.toml

@@ -1,5 +1,5 @@
 [toolchain]
-channel = "1.80.1"
+channel = "1.81.0"
 components = ["rustfmt", "rust-src", "rust-std", "clippy"]
 targets = [
   "x86_64-unknown-linux-gnu",