yamllint: All tasks need to be named

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

tests/sudorule/test_sudorule_single_hostnames.yml

@@ -5,7 +5,8 @@
   gather_facts: no
 
   tasks:
-  - block:
+  - name: Test sudorule single hostnames
+    block:
     # setup test environment
     - name: Get Domain from the server name
       ansible.builtin.set_fact: