[WASM][FIX] test tests/node/websock_rpc_test.py (#13862)

Co-authored-by: rqg <[email protected]>

Author: fantasyRqg

web/emcc/tvmjs_support.cc

@@ -162,7 +162,7 @@ class AsyncLocalSession : public LocalSession {
       // pass the callback as the last argument.
       setter(num_args, packed_callback);
 
-      auto* pf = static_cast<PackedFunc*>(func);
+      auto* pf = static_cast<PackedFuncObj*>(func);
       pf->CallPacked(TVMArgs(values.data(), type_codes.data(), num_args + 1), &temp);
     } else if (func == get_time_eval_placeholder_.get()) {
       // special handle time evaluator.