Docs: Include REST API reference content from swagger.json (#14607)

docs/docsite/rst/rest_api/_swagger/download-json.py

@@ -0,0 +1,13 @@
+import requests
+
+url = "https://awx-public-ci-files.s3.amazonaws.com/community-docs/swagger.json"
+swagger_json = "./docs/docsite/rst/rest_api/_swagger/swagger.json"
+
+response = requests.get(url)
+
+if response.status_code == 200:
+    with open(swagger_json, 'wb') as file:
+        file.write(response.content)
+    print(f"JSON file downloaded to {swagger_json}")
+else:
+    print(f"Request failed with status code: {response.status_code}")