[releng] Issue #7576: Block glibc32, libgcc32 (sub)packages from all composes

[Florian Weimer]

The status of the issue: `Block glibc32, libgcc32 (sub)packages from all composes` of
project: `releng` has been updated to: Open by fweimer.

https://pagure.io/releng/issue/7576