shim/rollkit: downgrade proto/upgrade rollkit #258
Description
it seems that rollkit that we are using uses go-da 0.2.0. However, the proto for gRPC service is taken from 0.4.0. This still works but sometimes it does crash.
We should either downgrade the proto of go-da to 0.2 or wait until rollkit releases version that depends on go-da 0.4.0.