change default http and grpc port number via config?

[yosiasz]

Greetings,

Grafana Agent runs http on 12345 and grpc on 12346
Is this configurable via config file?

Thanks

[yosiasz]

Had to download source zip file to find this

- The default HTTP listen address is now `127.0.0.1:12345`. Use the
  `-server.http.address` flag to change this value. (@rfratto)

- The default gRPC listen address is now `127.0.0.1:12346`. Use the
  `-server.grpc.address` flag to change this value. (@rfratto)