SLES/OpenSUSE: enable debugging repo before installing
SLES/OpenSUSE: enable debugging repo before installing

Package glibc-debuginfo, which is a requirement,
requires repo-debug to be enabled, which is not enabled
by default.

This commit enables this repo when installing if it is
not already enabled.

pwndbg/pwndbg,pwndbg/pwndbg,pwndbg/pwndbg,pwndbg/pwndbg