missing kinit during admin management

https://gitlab.adullact.net/adullact/puppet-freeipa/blob/master/manifests/config/humanadmin.pp#L44 https://gitlab.adullact.net/adullact/puppet-freeipa/blob/master/manifests/config/humanadmin.pp#L40

The commands ipa user-show and ipa group-show can not work without kerberos ticket. During the first run it works, but after ticket is outdated, the commands will not work.