Update simsimd to v4.3.1 (#3998)

packages/s/simsimd/xmake.lua

@@ -7,6 +7,7 @@ package("simsimd")
     add_urls("https://github.com/ashvardanian/SimSIMD/archive/refs/tags/$(version).tar.gz",
              "https://github.com/ashvardanian/SimSIMD.git")
 
+    add_versions("v4.3.1", "d3c54c5b27f8bbb161c8523c47ddc98bfeb75cac17066c959f42ebe78c518b0f")
     add_versions("v3.9.0", "8e79b628ba89beebc7c4c853323db0e10ebb6f85bcda2641e1ebaf77cfbda7f9")
 
     on_install(function (package)