Refactor to detect apache2 automatically

Author: t2d

defaults/main.yml

@@ -63,6 +63,3 @@ roundcube_carddav_version: 4.4.2
 
 # Installer
 roundcube_enable_installer: false
-
-# Apache
-roundcube_apache: true

handlers/main.yml

@@ -17,7 +17,7 @@
   ansible.builtin.service:
     name: apache2
     state: restarted
-  when: roundcube_apache | bool
+  when: ansible_facts.services is search("apache2.service")
   notify:
     - Restart php-fpm