[Enhancement] eventmesh go server add grpc server proto

[walleliu1016]

Search before asking

• [X] I had searched in the issues and found no similar issues.

Enhancement Request

generate the go code according to the proto in the protocol-grpc-plugin

Describe the solution you'd like

refer to the proto in the protocol-grpc-plugin

Are you willing to submit PR?

• [X] Yes I am willing to submit a PR!