update llvm (#2145)

packages/l/llvm/xmake.lua

@@ -38,6 +38,7 @@ package("llvm")
         add_versions("11.0.0", "b7b639fc675fa1c86dd6d0bc32267be9eb34451748d2efd03f674b773000e92b")
         add_versions("14.0.0", "35ce9edbc8f774fe07c8f4acdf89ec8ac695c8016c165dd86b8d10e7cba07e23")
         add_versions("15.0.7", "8b5fcb24b4128cf04df1b0b9410ce8b1a729cb3c544e6da885d234280dedeac6")
+        add_versions("16.0.5", "37f540124b9cfd4680666e649f557077f9937c9178489cea285a672e714b2863")
     end
 
     add_configs("shared",            {description = "Build shared library.", default = false, type = "boolean", readonly = true})