[BUG] gsctl fail to import graph

```
user@iZj6cehhiq63h2ndy9fvy6Z:~/interactive-test$ gsctl create datasource -f ./datasource.yaml -g 2
/usr/local/lib/python3.10/dist-packages/requests/__init__.py:109: RequestsDependencyWarning: urllib3 (2.0.7) or chardet (4.0.0)/charset_normalizer (3.0.1) doesn't match a supported version!
warnings.warn(
Using GLOBAL.
Run `gsctl use GRAPH ` to switch to a specific graph context.

[FAILED] Failed to bind data source: 1 validation error for UploadFileResponse
metadata
Input should be a valid dictionary [type=dict_type, input_value=None, input_type=NoneType]
For further information visit https://errors.pydantic.dev/2.7/v/dict_type
```