config: Use FQCN for ansible.builtin

Use Fully Qualified Collection Name (FQCN) for ansible builtins. This is
ansible.builtin.set_fact instead of set_fact for example and aplies for
all actions that are part of ansible.builtin.

All the replaced ansible.builtins:
  assert, command, copy, debug, fail, fetch, file, import_playbook,
  import_tasks, include_role, include_tasks, include_vars, package,
  set_fact, shell, slurp, stat, systemd

playbooks/config/retrieve-config.yml

@@ -11,5 +11,5 @@
     register: serverconfig
 
   - name: Display current configuration.
-    debug:
+    ansible.builtin.debug:
       msg: "{{ serverconfig }}"

tests/config/test_config.yml

@@ -5,7 +5,7 @@
   gather_facts: false
 
   tasks:
-  - include_tasks: ../env_freeipa_facts.yml
+  - ansible.builtin.include_tasks: ../env_freeipa_facts.yml
 
   - block:
       # Retrieve current configuration.
@@ -16,7 +16,7 @@
         register: previousconfig
 
       - name: Display current configuration.
-        debug:
+        ansible.builtin.debug:
           var: previousconfig
 
       # setup environment.
@@ -481,7 +481,7 @@
         register: result
 
       - name: "CA-Renewal server warning."
-        debug:
+        ansible.builtin.debug:
           msg: "Due to a test failure, IPA CA-Renewal Server might not be correctly be set. Check your configuration."
 
     always:

tests/config/test_config_client_context.yml

@@ -6,7 +6,7 @@
 
   tasks:
   - name: Include FreeIPA facts.
-    include_tasks: ../env_freeipa_facts.yml
+    ansible.builtin.include_tasks: ../env_freeipa_facts.yml
 
   # Test will only be executed if host is not a server.
   - name: Execute with server context in the client.
@@ -26,13 +26,13 @@
 # in upstream CI.
 
 - name: Test config using client context, in client host.
-  import_playbook: test_config.yml
+  ansible.builtin.import_playbook: test_config.yml
   when: groups['ipaclients']
   vars:
     ipa_test_host: ipaclients
 
 - name: Test config using client context, in server host.
-  import_playbook: test_config.yml
+  ansible.builtin.import_playbook: test_config.yml
   when: groups['ipaclients'] is not defined or not groups['ipaclients']
   vars:
     ipa_context: client

tests/config/test_config_sid.yml

@@ -7,7 +7,7 @@
   tasks:
 
   - name: Set FreeIPA facts.
-    include_tasks: ../env_freeipa_facts.yml
+    ansible.builtin.include_tasks: ../env_freeipa_facts.yml
 
   # GET CURRENT CONFIG