RPM Support

containers: Use Fedora 30's test Errata for libcomps

until they release the Errata.

So that python3-libcomps can have .egg-info metadata available for pip to see that libcomps is already satisfied for pulp_rpm.

They already released the corresponding Errata for Fedora 31, so this should be very safe.

Also, cleanup currently unneeded -devel packages.

[noissue]

re: #5840 as a user of pulp_rpm_prerequisites I have libcomps installed from pypi https://pulp.plan.io/issues/5840

Story: As a user of pulp_rpm_prerequisites I have libcomps installed from pypi

Implementation: Now that pulp_rpm declares its dependency on libcomps (and PyGObject), let the pip install of pulp_rpm install libcomps as a dependency from PyPI.

The only change to this repo is to update the comments on why we must install the build deps of scikit-build & nose, which are already installed for createrepo_c.

fixes: #5840 as a user of pulp_rpm_prerequisites I have libcomps installed from pypi https://pulp.plan.io/issues/5840

re: #5853 pulp_rpm does not declare its dependency on libcomps & PyGObject https://pulp.plan.io/issues/5853

containers: Use Fedora 30's test Errata for libcomps

until they release the Errata.

So that python3-libcomps can have .egg-info metadata available for pip to see that libcomps is already satisfied for pulp_rpm.

They already released the corresponding Errata for Fedora 31, so this should be very safe.

Also, cleanup currently unneeded -devel packages.

[noissue]

re: #5840 as a user of pulp_rpm_prerequisites I have libcomps installed from pypi https://pulp.plan.io/issues/5840

(cherry picked from commit 18ef6d403893dbb4f022362ca4a3b3e10cafd359)