Bump MSRV to 1.80

This commit updates the minimum Rust version required to compile
Wasmtime to 1.80.0 from the previous 1.78.0.

Author: alexcrichton

Cargo.toml

@@ -165,7 +165,7 @@ authors = ["The Wasmtime Project Developers"]
 edition = "2021"
 # Wasmtime's current policy is that this number can be no larger than the
 # current stable release of Rust minus 2.
-rust-version = "1.78.0"
+rust-version = "1.80.0"
 
 [workspace.lints.rust]
 # Turn on some lints which are otherwise allow-by-default in rustc.