[#1441] network/cache: Use grpc.WaitForReady option when creating client

Signed-off-by: Aleksey Savchuk <a.savchuk@yadro.com>

pkg/network/cache/multi.go

@@ -70,6 +70,7 @@ func (x *multiClient) createForAddress(ctx context.Context, addr network.Address
 			tracing.NewStreamClientInterceptor(),
 		),
 		grpc.WithContextDialer(x.opts.DialerSource.GrpcContextDialer()),
+		grpc.WithDefaultCallOptions(grpc.WaitForReady(true)),
 	}
 
 	prmDial := client.PrmDial{