INFRA-70: Modify playbook to run on 'local' group rather than 'all'

Run against 'local' group rather than 'all', which was including the localhost, thus failing when installed somewhere else than 'localhost'
	modified:   all.yml

all.yml

@@ -13,7 +13,7 @@
   roles:
     - { role: httpd-maintenance, maintenance_status: start , tags: always}
 
-- hosts: all
+- hosts: local
   sudo: yes
   roles:
     - { role: selinux, selinux_state: enforcing, selinux_policy: targeted, tags: selinux }