add prepare for archlinux

Signed-off-by: Martin Schurz <Martin.Schurz@telekom.de>

molecule/os_hardening_vm/molecule.yml

@@ -2,7 +2,7 @@
 dependency:
   name: galaxy
   options:
-    role-file: molecule/os_hardening/requirements.yml
+    role-file: molecule/os_hardening_vm/requirements.yml
 driver:
   name: vagrant
   provider:

molecule/os_hardening_vm/prepare.yml

@@ -1,4 +1,14 @@
 ---
+- name: Prepare Archliux host
+  hosts: all
+  become: true
+  gather_facts: false
+  tasks:
+    - name: Install python, since it's not installed by default
+      ansible.builtin.raw: pacman -Sy python
+      changed_when: false
+      when: ansible_facts.os_family == 'Archlinux'
+
 - name: Wrapper playbook for kitchen testing "ansible-os-hardening" with custom vars for testing
   hosts: all
   become: true