Rename to ChirpStack announcement

[brocaar]

@pooja.mittal

error=“rpc error: code = Unimplemented desc = unknown service as.ApplicationServerService” grpc.code=Unimplemented grpc.duration=“425.715µs” grpc.method=HandleUplinkData grpc.service=as.ApplicationServerService

error=“rpc error: code = Unimplemented desc = unknown service as.ApplicationServerService”

That looks like a misconfiguration somewhere. It looks quite simmilar to Problem with LoraServer and LoraAppServer API?.