[opendkim] Fix trusted hosts

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

roles/opendkim/templates/opendkim/TrustedHosts.j2

-127.0.0.1
-localhost
-::1
-
-138.231.136.0/21
-138.231.144.0/21
-
-10.231.136.0/24
-10.2.9.0/24
-
-2a0c:700:0:1::/64
-2a0c:700:0:2::/64
-2a0c:700:0:21::/64
-2a0c:700:0:22::/64
-2a0c:700:0:23::/64
-
-*.crans.org
-*.crans.fr
-*.crans.eu
+{% for host in opendkim.trust -%}
+{{ host }}
+{% endfor %}