Port the EPEL mirror rewrite from develop's test/Dockerfile, and run dnf upgrade before cleaning the cache. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012LvSM3NjBSCNsRwDpWeGfu
Port the EPEL mirror rewrite from develop's test/Dockerfile, and run dnf upgrade before cleaning the cache. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012LvSM3NjBSCNsRwDpWeGfu