fix: apply code review suggestions

Refs: #2914

Author: giulio-leone

src/openai/types/responses/response_text_delta_event.py

@@ -45,7 +45,7 @@ class ResponseTextDeltaEvent(BaseModel):
     """The text delta that was added."""
 
     item_id: str
-    logprobs: List[Logprob]
+    """The ID of the output item that the text delta was added to."""
 
     logprobs: Optional[List[Logprob]] = None
     """The log probabilities of the tokens in the delta."""

src/openai/types/responses/response_text_done_event.py

@@ -42,7 +42,7 @@ class ResponseTextDoneEvent(BaseModel):
     """The index of the content part that the text content is finalized."""
 
     item_id: str
-    logprobs: List[Logprob]
+    """The ID of the output item that the text content is finalized."""
 
     logprobs: Optional[List[Logprob]] = None
     """The log probabilities of the tokens in the delta."""