yamllint: All tasks need to be named

yamllint is failing for unnamed tasks. All block and include_tasks tasks
are now named.

tests/hbacrule/test_hbacrule_member_empty.yml

@@ -9,7 +9,8 @@
       ipaserver_domain: "{{ ansible_facts['fqdn'].split('.')[1:] | join ('.') }}"
     when: ipaserver_domain is not defined
 
-  - block:
+  - name: Test hbacrule member empty
+    block:
       # SETUP:
       - name: Ensure test HBAC rule is absent
         ipahbacrule: