platformio: Fix building of overridden click package

The normal click package now applies a patch that doesn't work with the
older version used for platformio.

pkgs/development/arduino/platformio/chrootenv.nix

@@ -13,6 +13,7 @@ let
               inherit version;
               sha256 = "678c98275431fad324275dec63791e4a17558b40e5a110e20a82866139a85a5a";
             };
+            patches = [];
           });
 
           platformio = self.callPackage ./core.nix { };