nzTable: nzWidth working wrong with colspan

[KangHidro]

Reproduction link

https://stackblitz.com/edit/ng-zorro-antd-ivy-3gn1dd?file=src/app/app.component.ts

Steps to reproduce

1. Create a nz-table with 2 row of thead, using rowspan and colspan
2. The last column using nzRight
3. Set nzWidth for each column in FIRST row, except the column using colspan
4. Set nzWidth for each column in SECOND row
5. Set nzScroll "x" value by sum of all nzWidth value

What is expected?

The second row of thead must be set to expected size

What is actually happening?

In the second row of thead: the last column is wrong size and it biggest

Environment	Info
ng-zorro-antd	11.4.2
Browser	Chromium 86.0.4240.198 // Edge 94.0.992.38