refactor(go): set `GOBIN`

home/apps/go.nix

@@ -2,8 +2,9 @@
   programs.go.enable = true;
   home.sessionVariables = {
     GOPATH = "${config.xdg.dataHome}/go";
+    GOBIN = "${config.home.sessionVariables.GOPATH}/bin";
   };
   home.sessionPath = [
-    "${config.home.sessionVariables.GOPATH}/bin"
+    "${config.home.sessionVariables.GOBIN}"
   ];
 }