Invalid property setting

- [x] I have searched the [issues](https://github.com/antvis/f2/issues) of this repository and believe that this is not a duplicate.

### Reproduction link
[https://j8ygx.csb.app/](https://j8ygx.csb.app/)

### Steps to reproduce
I want to adjust the radius and position of the pie chart. Using these two APIs is invalid.

| Environment | Info |
|---|---|
| f2 | 3.8.0 |
| System | windows |
| Browser | Google Chrome 85.0.4183.83 |

Start with the reproduction link and inspect the pie-chart configuration for the radius and position APIs described in the issue. Confirm the behavior in F2 3.8.0 and determine what change is needed so both settings take effect; done means the reproduced chart has the requested radius and position.

Written by the indexing model from the issue text.