selectToolbarPlacement: 'none' and isRowSelectable not working well together

selectToolbarPlacement: 'none'
isRowSelectable: boolean function, e.g.

```
isRowSelectable: (dataIndex) => {
return dataIndex % 2 === 1;
}

```
Expected:

Clicking on select all checkbox in the header selects all items which are selectable.

Current:

Nothing is selected. If selectToolbarPlacement is set to 'above' or 'replace', it is working well.

https://codesandbox.io/s/vigorous-mendel-t8bjs

| Tech | Version |
|--------------|---------|
| Material-UI | 4.11.2 |
| MUI-datatables | 3.7.3 |
| React | 17.0.0 |
| browser | Any |

Start with the linked CodeSandbox reproduction and compare select-all behavior with selectToolbarPlacement set to 'none' versus 'above' or 'replace'. Trace how isRowSelectable is applied when the header checkbox is clicked; done means the header selects all selectable rows while leaving non-selectable rows unselected.

Written by the indexing model from the issue text.