✅ Tweak test

tests/test_return_none_stringified_annotations.py

@@ -8,7 +8,8 @@ def test_no_content():
     app = FastAPI()
 
     @app.get("/no-content", status_code=http.HTTPStatus.NO_CONTENT)
-    def return_no_content() -> "None": ...  # pragma: no cover
+    def return_no_content() -> "None":
+        return
 
     client = TestClient(app)
     response = client.get("/no-content")