[refactor/grpc] Adjust coverage -> Only core packages
[refactor/grpc] Adjust coverage -> Only core packages

jvanmalder/ttn,mgranberry/ttn,mgranberry/ttn,mgranberry/ttn,LoRaWanSoFa/ttn,LoRaWanSoFa/ttn,TheThingsNetwork/ttn,jvanmalder/ttn,TheThingsNetwork/ttn,TheThingsNetwork/ttn,jvanmalder/ttn