Debug packages must be removed together with normal ones

[arcan1s]

Summary

Last pacman releases added debug packages, which are built automatically. However, they are not being removed with package-remove, unless specified explicitly. The idea is that if a package is removed, it should be done together with debug package

Steps to reproduce

1. build.include_debug_packages = yes
2. ahriman package-add --now ahriman
3. ahriman package-remove ahriman

Expected behavior

ahriman-debug package should be removed from the repository.