community[patch]: update gpt-4o cost (langchain-ai#27038)

updated OpenAI cost definition according to the following:
https://openai.com/api/pricing/

Author: ogawa65a

libs/community/langchain_community/callbacks/openai_info.py

@@ -27,11 +27,11 @@
     "gpt-4o-mini-completion": 0.0006,
     "gpt-4o-mini-2024-07-18-completion": 0.0006,
     # GPT-4o input
-    "gpt-4o": 0.005,
+    "gpt-4o": 0.0025,
     "gpt-4o-2024-05-13": 0.005,
     "gpt-4o-2024-08-06": 0.0025,
     # GPT-4o output
-    "gpt-4o-completion": 0.015,
+    "gpt-4o-completion": 0.01,
     "gpt-4o-2024-05-13-completion": 0.015,
     "gpt-4o-2024-08-06-completion": 0.01,
     # GPT-4 input