add one type ignore

Author: svlandeg

backend/app/main.py

@@ -22,7 +22,7 @@ def custom_generate_unique_id(route: APIRoute) -> str:
 
 # Set all CORS enabled origins
 if settings.all_cors_origins:
-    app.add_middleware(
+    app.add_middleware(  # type: ignore[arg-type]
         CORSMiddleware,
         allow_origins=settings.all_cors_origins,
         allow_credentials=True,