build(lua): switch from lua54 to luajit for better performance

Author: DefectingCat

Cargo.toml

@@ -26,7 +26,7 @@ mime_guess = "2.0.5"
 mlua = { version = "0.11.6", optional = true, features = [
     "anyhow",
     "async",
-    "lua54",
+    "luajit",
     "macros",
     "send",
     "serialize",