Update cosmocc to version 3.8.0 (#5114)

packages/c/cosmocc/xmake.lua

@@ -30,6 +30,11 @@ package("cosmocc")
     add_versions("3.6.0", "4918c45ac3e0972ff260e2a249e25716881e39fb679d5e714ae216a2ef6c3f7e")
     add_versions("3.6.1", "5f46bdfa4db8326794306d1a0348efc01e199f53b262bc05aa92b37be09a3f3a")
     add_versions("3.6.2", "268aa82d9bfd774f76951b250f87b8edcefd5c754b8b409e1639641e8bd8d5bc")
+    add_versions("3.7.0", "871cfffd2e4ee3fc55d6f8d8583c6d73669f8412eea604830c8ecb74f89d6aef")
+    add_versions("3.7.1", "13b65b0e659b493bd82f3d0a319d0265d66f849839e484aa2a54191024711e85")
+    add_versions("3.8.0", "813c6b2f95062d2e0a845307a79505424cb98cb038e8013334f8a22e3b92a474")
+
+
 
     on_load("@windows|x64", function (package)
         package:add("deps", "msys2")