具体报错信息如下：

发生异常: Error: bad response (status=403, headers={"date":"Sat, 11 Nov 2023 12:27:44 GMT","content-type":"application/json","content-length":"48","connection":"keep-alive","x-amzn-requestid":"ee911048-a246-4d94-a4fe-a2aac3474f25","x-amz-apigw-id":"OO7yKF97CYcEEgQ=","vary":"Origin","x-amzn-trace-id":"Root=1-654f7340-6b74d6bd66c39c112824c913;Sampled=0;lineage=3d257173:0"}, body="{\"error\":\"missing X-Flashbots-Signature header\"}", requestBody="{\"method\":\"eth_chainId\",\"params\":[],\"id\":42,\"jsonrpc\":\"2.0\"}", requestMethod="POST", url="https://relay-goerli.flashbots.net", code=SERVER_ERROR, version=web/5.7.1)

参考的是这个地方 https://github.com/flashbots/ethers-provider-flashbots-bundle