Deployment check: use newer ansible fact syntax

Signed-off-by: NCleber Rosa <crosa@redhat.com>

selftests/deployment/tasks/epel.yml

@@ -4,5 +4,5 @@
       name: "https://dl.fedoraproject.org/pub/epel/epel-release-latest-{{ ansible_distribution_major_version }}.noarch.rpm"
     when:
       # This should work on both RHEL, CentOS, Scientific Linux, etc
-      - ansible_distribution_file_variety == "RedHat"
-      - ansible_distribution_major_version == "7"
+      - ansible_facts['distribution_file_variety'] == "RedHat"
+      - ansible_facts['distribution_major_version'] == "7"

selftests/deployment/tasks/python_rpm_pkgs.yml

@@ -4,4 +4,4 @@
       name: "{{ item }}"
       state: latest
     with_items: "{{ avocado_python_rpm_packages }}"
-    when: ansible_distribution_file_variety == "RedHat"
+    when: ansible_facts['distribution_file_variety'] == "RedHat"