Merge pull request #312 from openai/dev/yliu/add_chatgpt_4o_latest

Add chatgpt-4o-latest in spec

Author: yutian-openai

openapi.yaml

@@ -9602,6 +9602,7 @@ components:
                                   "gpt-4o",
                                   "gpt-4o-2024-05-13",
                                   "gpt-4o-2024-08-06",
+                                  "chatgpt-4o-latest",
                                   "gpt-4o-mini",
                                   "gpt-4o-mini-2024-07-18",
                                   "gpt-4-turbo",