feat: set workspace edition = "2024" rust-version = "1.85.0"

rust 1.85 is the MSRV for edition 2024.

Author: pchickey

Cargo.toml

@@ -6,11 +6,11 @@ members = [
 ]
 
 [workspace.package]
-edition = "2021"
+edition = "2024"
 license = "Apache-2.0"
 homepage = "https://github.com/nginx/ngx-rust"
 repository = "https://github.com/nginx/ngx-rust"
-rust-version = "1.81.0"
+rust-version = "1.85.0"
 
 [package]
 name = "ngx"