update simdutf to 4.0.9 (#3423)

packages/s/simdutf/xmake.lua

@@ -7,6 +7,7 @@ package("simdutf")
              "https://github.com/simdutf/simdutf.git")
 
     add_versions("v3.2.17", "c24e3eec1e08522a09b33e603352e574f26d367a7701bf069a65881f64acd519")
+    add_versions("v4.0.9", "599e6558fc8d06f8346e5f210564f8b18751c93d83bce1a40a0e6a326c57b61e")
 
     add_configs("iconv", {description = "Whether to use iconv as part of the CMake build if available.", default = false, type = "boolean"})