client: set lpoptions based on ansible_hostname instead inventory_

This breaks in AStA where the inventory hostnames are FQDNs.

desktop/templates/lpoptions.j2

-{%- if inventory_hostname | regex_replace('[0-9]$', '') == "hoern" or inventory_hostname == "portal" -%}
+{%- if ansible_hostname | regex_replace('[0-9]$', '') == "hoern" or ansible_hostname == "portal" -%}
 Default Hoern_Kopierer Duplex=DuplexNoTumble
-{%- elif inventory_hostname | regex_replace('[0-9]$', '') == "lxc" -%}
+{%- elif ansible_hostname | regex_replace('[0-9]$', '') == "lxc" -%}
 Dest Kopierer_Briefpapier ColorModel=Gray KCRotate=On
 Default Kopierer_BW ColorModel=Gray
 {%- else -%}
-{%- set number = inventory_hostname | regex_replace('^[a-z]*', '') -%}
+{%- set number = ansible_hostname | regex_replace('^[a-z]*', '') -%}
 Default Kopierer ColorModel=Gray Duplex=DuplexNoTumble OutputBin=MBDWN0{{ number }}
 {%- endif -%}