dvc: dvc move doesn't update deps

Situation:

```bash
dvc add foo
dvc run -d foo -o foo_refined ./refine.py
dvc move foo proper_name
```

The last command will:
- rename `foo` to `proper_name`
- rename `foo.dvc` to `proper_name.dvc`
- replace `foo` with `proper_name` in `.gitignore`

However, it won't update dep path in `foo_refined.dvc`