gpt3: use text-davinci-003

edmond/plugins/gpt3.py

@@ -29,7 +29,7 @@ class Gpt3Plugin(Plugin):
     def complete(self, prompt: str) -> Optional[str]:
         try:
             completion = openai.Completion.create(
-                model="text-davinci-002",
+                model="text-davinci-003",
                 prompt=prompt,
                 temperature=0.7,
                 max_tokens=128,