validate_modules: allow 'choices' for return values (#76009)

* Allow 'choices' for return values.

changelogs/fragments/76009-validate-modules-choices-return-value.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - "ansible-test validate_modules - allow ``choices`` for return values (https://github.com/ansible/ansible/pull/76009)."

test/lib/ansible_test/_util/controller/sanity/validate-modules/validate_modules/schema.py

@@ -395,6 +395,7 @@ def return_schema(for_collection):
                     Required('type'): Any('bool', 'complex', 'dict', 'float', 'int', 'list', 'str'),
                     'version_added': version(for_collection),
                     'version_added_collection': collection_name,
+                    'choices': Any([object], (object,)),
                     'sample': json_value,
                     'example': json_value,
                     'contains': Any(None, *list({str_type: Self} for str_type in string_types)),