mautrix-telegram: fix build

pkgs/servers/mautrix-telegram/default.nix

···
           inherit pname version;
           hash = "sha256-ewqc6s5xXquZJTZVBsFmHeamBLDw6PnTSNcmTNKD0sk=";
         };
+        patches = [ ];
         doCheck = false;
       });
     };