[Python][FlightRPC] Support setting keepalive grpc arguments for Arrow Flight server

### Describe the enhancement requested

Is there any way to set keepalive argument like GRPC_ARG_HTTP2_MAX_PING_STRIKES on arrow flight server side of Python?

I know it is possible to set grpc keepalive arguments on the client side through parameter generic_options of pyarrow.flight.FlightClient. But I don't see anything for pyarrow.flight.FlightServerBase


### Component(s)

FlightRPC, Python