buildGoPackage: default to 1.10 (default go version)

This otherwise sometimes caused go builds to fail that were trying to
build C ffi code.

(expected type uint32, got type uint32 or similar)

pkgs/top-level/all-packages.nix

@@ -12101,8 +12101,11 @@ with pkgs;
   buildGo19Package = callPackage ../development/go-modules/generic {
     go = go_1_9;
   };
+  buildGo110Package = callPackage ../development/go-modules/generic {
+    go = go_1_10;
+  };
 
-  buildGoPackage = buildGo19Package;
+  buildGoPackage = buildGo110Package;
 
   go2nix = callPackage ../development/tools/go2nix { };