style: 使用ruff格式化middlewares模块，优化导入

ruoyi-fastapi-backend/middlewares/cors_middleware.py

@@ -5,8 +5,8 @@ from fastapi.middleware.cors import CORSMiddleware
 def add_cors_middleware(app: FastAPI):
     # 前端页面url
     origins = [
-        "http://localhost:80",
-        "http://127.0.0.1:80",
+        'http://localhost:80',
+        'http://127.0.0.1:80',
     ]
 
     # 后台api允许跨域
@@ -14,6 +14,6 @@ def add_cors_middleware(app: FastAPI):
         CORSMiddleware,
         allow_origins=origins,
         allow_credentials=True,
-        allow_methods=["*"],
-        allow_headers=["*"],
+        allow_methods=['*'],
+        allow_headers=['*'],
     )