Update execution.rs

Author: lispc

zkevm-circuits/src/evm_circuit/execution.rs

@@ -302,7 +302,7 @@ pub(crate) struct ExecutionConfig<F> {
     sstore_gadget: Box<SstoreGadget<F>>,
     stop_gadget: Box<StopGadget<F>>,
     swap_gadget: Box<SwapGadget<F>>,
-    blockhash_gadget: DummyGadget<F, 1, 1, { ExecutionState::BLOCKHASH }>,
+    blockhash_gadget: Box<DummyGadget<F, 1, 1, { ExecutionState::BLOCKHASH }>>,
     block_ctx_u64_gadget: Box<BlockCtxU64Gadget<F>>,
     block_ctx_u160_gadget: Box<BlockCtxU160Gadget<F>>,
     block_ctx_u256_gadget: Box<BlockCtxU256Gadget<F>>,