Fix MSRV (wasmi-labs#1320)

fix MSRV

Author: Robbepop

Cargo.toml

@@ -19,7 +19,7 @@ resolver = "2"
 authors = ["Robin Freyler <robin.freyler@gmail.com>"]
 repository = "https://github.com/wasmi-labs/wasmi"
 version = "0.40.0"
-rust-version = "1.79"
+rust-version = "1.80"
 edition = "2021"
 readme = "README.md"
 license = "MIT/Apache-2.0"