client: resolve too many open files issue
client: resolve too many open files issue

Closing #47

Bridg/hydra-1,ory/hydra,ory-am/hydra,Grillz/hydra,ory/hydra,ory/hydra,Bridg/hydra-1,Grillz/hydra,Bridg/hydra-1,ory-am/go-iam,leetal/hydra,ory-am/go-iam,ory/hydra