Use fully-qualified module names for builtin Ansible modules

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1939

roles/matrix-synapse/tasks/ext/rest-auth/setup_install.yml

@@ -1,12 +1,12 @@
 ---
 
 - name: Fail if REST Auth endpoint not configured
-  fail:
+  ansible.builtin.fail:
     msg: "You have enabled the REST Auth password provider, but have not configured its endpoint in the `matrix_synapse_ext_password_provider_rest_auth_endpoint` variable. Consult the documentation."
   when: "matrix_synapse_ext_password_provider_rest_auth_endpoint == ''"
 
 - name: Download matrix-synapse-rest-auth
-  get_url:
+  ansible.builtin.get_url:
     url: "{{ matrix_synapse_ext_password_provider_rest_auth_download_url }}"
     dest: "{{ matrix_synapse_ext_path }}/rest_auth_provider.py"
     force: true
@@ -18,7 +18,7 @@
   delay: "{{ matrix_geturl_retries_delay }}"
   until: result is not failed
 
-- set_fact:
+- ansible.builtin.set_fact:
     matrix_synapse_password_providers_enabled: true
 
     matrix_synapse_container_extra_arguments: >

roles/matrix-synapse/tasks/ext/rest-auth/setup_uninstall.yml

@@ -1,6 +1,6 @@
 ---
 
 - name: Ensure matrix-synapse-rest-auth doesn't exist
-  file:
+  ansible.builtin.file:
     path: "{{ matrix_synapse_ext_path }}/rest_auth_provider.py"
     state: absent