[misc] upgrade format to py39 (#7256)

src/llamafactory/webui/components/eval.py

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from typing import TYPE_CHECKING, Dict
+from typing import TYPE_CHECKING
 
 from ...extras.packages import is_gradio_available
 from ..common import DEFAULT_DATA_DIR
@@ -30,7 +30,7 @@ if TYPE_CHECKING:
     from ..engine import Engine
 
 
-def create_eval_tab(engine: "Engine") -> Dict[str, "Component"]:
+def create_eval_tab(engine: "Engine") -> dict[str, "Component"]:
     input_elems = engine.manager.get_base_elems()
     elem_dict = dict()