Extra docs: generate Ansible outputs with 'antsibull-docs ansible-output' (#10421)

* Generate many Ansible outputs with 'antsibull-docs ansible-output'.

* Generate YAML output as well.

* Check ansible-output from CI instead of updating.

* Use reset-previous-blocks meta action; generate more code blocks.

* Use set-template meta action.

* Run ansible-output in CI if anything in docs/ is changed.

* Remove unnecessary allow_duplicate_keys.

docs/docsite/config.yml

@@ -5,3 +5,13 @@
 
 changelog:
   write_changelog: true
+
+ansible_output:
+  global_env:
+    ANSIBLE_STDOUT_CALLBACK: community.general.tasks_only
+    ANSIBLE_COLLECTIONS_TASKS_ONLY_NUMBER_OF_COLUMNS: 90
+  global_postprocessors:
+    reformat-yaml:
+      command:
+        - python
+        - docs/docsite/reformat-yaml.py