Fix unittest (#8161)

Fixes #8160

### Description

A few sentences describing the changes proposed in this pull request.

### Types of changes
<!--- Put an `x` in all the boxes that apply, and remove the not
applicable items -->
- [x] Non-breaking change (fix or new feature that would not break
existing functionality).
- [ ] Breaking change (fix or new feature that would cause existing
functionality to change).
- [ ] New tests added to cover the changes.
- [ ] Integration tests passed locally by running `./runtests.sh -f -u
--net --coverage`.
- [ ] Quick tests passed locally by running `./runtests.sh --quick
--unittests --disttests`.
- [ ] In-line docstrings updated.
- [ ] Documentation updated, tested `make html` command in the `docs/`
folder.

---------

Signed-off-by: YunLiu <[email protected]>

monai/networks/utils.py

@@ -697,7 +697,7 @@ def convert_to_onnx(
         torch.onnx.export(
             mode_to_export,
             onnx_inputs,
-            f=f,
+            f=f,  # type: ignore[arg-type]
             input_names=input_names,
             output_names=output_names,
             dynamic_axes=dynamic_axes,

tests/test_bundle_download.py

@@ -250,7 +250,7 @@ def test_download_monaihosting(self, mock_get_versions):
                 mock_logger.warning.assert_called_once()
 
     @skip_if_quick
-    @patch("monai.bundle.scripts.get_versions", return_value={"version": "1.2"})
+    @patch("monai.bundle.scripts.get_versions", return_value={"version": "1.3"})
     def test_download_ngc(self, mock_get_versions):
         """Test checking MONAI version from a metadata file."""
         with patch("monai.bundle.scripts.logger") as mock_logger: