Corresponding RHEL ticket: ROK-1102

MR that enabled it: https://gitlab.cee.redhat.com/brew/brew-confs/-/merge_requests/345

In RHEL on GitLab we pass the --skip-tag option to brew/koji when doing draft builds into side-tags. We do this as draft builds were originally only allowed in *-draft tags by policy, so we had to skip tagging at build time and then once a draft was promoted then tag it into the side-tag.

This started to become an issue with Konflux, as it mandates draft builds and tags builds into side-tags, but the CS build for that MR could still be done without draft builds. This, and other issues, caused the CS & RHEL side-tags to look inconsistent which started to cause us problems.

We would like to drop --skip-tag now so that side-tags with draft builds are consistent across all build systems: https://gitlab.com/redhat/centos-stream/ci-cd/osci-pipelines/-/merge_requests/536

We have the policy updated for RHEL, but we need to be able to tag draft builds into side-tags in CS before we can proceed.