base: Fix setting hostname on OpenBSD hosts

ansible.builtin.hostname seems to be broken on OpenBSD so set hostname
directly using /etc/myname

roles/base/tasks/main.yml

@@ -28,10 +28,6 @@
   ansible.builtin.setup:
     filter: ansible_local
 
-- name: set correct hostname
-  ansible.builtin.hostname:
-    name: "{{ inventory_hostname }}"
-
 - name: include os specific tasks
   ansible.builtin.include_tasks:
     file: "{{ ansible_os_family }}.yml"