🐞 - TuiOnboardingFlow should be migrated from v3 to v4

### Reproduction url

-

### Description

When migrating from 3 to 4 taiga ui, there is no migration that would correctly migrate TuiOnboardingFlowModule from the proprietary package and replacing the Module import to standalone component import (from proptietary package).

### Taiga UI version

4.57.0

### Browser Used

Chrome

### OS Used

macOS