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Environment
Window
EventMesh version
Other
What happened


How to reproduce
First, I run the code under the grpc branch, use the CloudEventPublishInstance send the message to topic TEST-TOPIC-GRPC-ASYNC, and use EventMeshAsyncSubscribe the topic, after the client receive the message, didn't ack the offset of the topic, when I restarted the consumer client, the client reconsume the message again.
Second, for cloudevents, miss the specversion attribute cause the exception in eventmesh grpc client.
Debug logs
No response
Are you willing to submit PR?