Typo fix

fastapi/openapi/utils.py

@@ -297,7 +297,7 @@ def get_openapi_path(
                     additional_response,
                 ) in route.responses.items():
                     process_response = additional_response.copy()
-                    process_rseponse_model = process_response.pop("model", None)
+                    process_response_model = process_response.pop("model", None)
                     status_code_key = str(additional_status_code).upper()
                     if status_code_key == "DEFAULT":
                         status_code_key = "default"
@@ -307,7 +307,7 @@ def get_openapi_path(
                     assert isinstance(
                         process_response, dict
                     ), "An additional response must be a dict"
-                    if not process_response and not process_rseponse_model:
+                    if not process_response and not process_response_model:
                         empty_responses.append(str(additional_status_code))
                     field = route.response_fields.get(additional_status_code)
                     additional_field_schema: Optional[Dict[str, Any]] = None