chore: bump aweXpect to v2.29.0 (#1379)

This PR updates the aweXpect testing library dependencies to their latest versions.

### Key Changes:
- Bumps aweXpect from version 2.26.0 to 2.29.0
- Bumps aweXpect.Testably from version 0.12.0 to 0.13.0

Author: vbreuss