chore: apply ruff rules on tests and app.py (#3605)

api/tests/integration_tests/model_runtime/openai/test_llm.py

@@ -1,11 +1,17 @@
 import os
-from typing import Generator
+from collections.abc import Generator
 
 import pytest
+
 from core.model_runtime.entities.llm_entities import LLMResult, LLMResultChunk, LLMResultChunkDelta
-from core.model_runtime.entities.message_entities import (AssistantPromptMessage, ImagePromptMessageContent,
-                                                          PromptMessageTool, SystemPromptMessage,
-                                                          TextPromptMessageContent, UserPromptMessage)
+from core.model_runtime.entities.message_entities import (
+    AssistantPromptMessage,
+    ImagePromptMessageContent,
+    PromptMessageTool,
+    SystemPromptMessage,
+    TextPromptMessageContent,
+    UserPromptMessage,
+)
 from core.model_runtime.entities.model_entities import AIModelEntity, ModelType
 from core.model_runtime.errors.validate import CredentialsValidateFailedError
 from core.model_runtime.model_providers.__base.large_language_model import LargeLanguageModel