zabbix_agent Debian ignores zabbix_agent_install_agent_only

[BenGig]

SUMMARY

On Debian, zabbix_agent_install_agent_only is ignored. Tasks are not separated for agent vs. sender/get, as it is in Suse and Redhat.

ISSUE TYPE

• Bug Report

COMPONENT NAME

zabbix_agent/tasks/Debian.yml

ANSIBLE VERSION

ansible 2.10.8
  config file = /home/bgiger/.ansible.cfg
  configured module search path = ['/home/bgiger/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/bgiger/.local/lib/python3.8/site-packages/ansible
  executable location = /home/bgiger/.local/bin/ansible
  python version = 3.8.5 (default, Jan 27 2021, 15:41:15) [GCC 9.3.0]

PR follows.