freshmaker: Port from the yum module to the package module

Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>

roles/freshmaker/base/tasks/main.yml

@@ -1,26 +1,17 @@
 ---
 - name: install the packages required for Freshmaker frontend
-  yum:
+  package:
-    name: "{{ item }}"
+    name: ["httpd", "mod_wsgi", "mod_auth_openidc",
+           "libsemanage-python", "python-psycopg2", "freshmaker"]
     state: present
-  with_items:
-  - httpd
-  - mod_wsgi
-  - mod_auth_openidc
-  - libsemanage-python
-  - python-psycopg2
-  - freshmaker
   when: inventory_hostname.startswith('freshmaker-frontend')
   tags:
   - freshmaker
 
 - name: install the packages required for Freshmaker backend
-  yum:
+  package:
-    name: "{{ item }}"
+    name: ["python-psycopg2", "freshmaker"]
     state: present
-  with_items:
-  - python-psycopg2
-  - freshmaker
   when: inventory_hostname.startswith('freshmaker-backend')
   tags:
   - freshmaker