Replace manual disk cleanup with quick-cleanup

[sebrandon1]

Summary

Replace manual disk cleanup scripts with the shared palmsoftware/quick-cleanup GitHub Action.

This consolidates the manual cleanup (swapoff, swap removal, docker system prune) into a single maintained action as a separate step before the publish step. It also provides automatic Docker storage relocation to the larger /mnt partition — a feature none of the manual scripts currently implement.

Already in use

quick-cleanup is already adopted in production workflows across multiple projects:

• crc-org/crc — OpenShift Local (CRC)
• palmsoftware/quick-ocp — OpenShift cluster deployment action
• palmsoftware/quick-k8s — Kubernetes cluster deployment action (KinD/Minikube)

Tracking

• palmsoftware/quick-cleanup#3 — Tracking issue

Related PRs

• Add disk space cleanup to RPM build workflow crc-org/crc#5145
• Replace manual disk cleanup with quick-cleanup openshift-kni/openperouter#159
• Replace manual disk cleanup with quick-cleanup metallb/metallb-operator#537
• Replace manual disk cleanup with quick-cleanup prometheus-operator/prometheus-operator#8389
• Replace manual disk cleanup with quick-cleanup topolvm/topolvm#1151
• Replace manual disk cleanup with quick-cleanup #9550

Changes

• Updated .github/workflows/push.yml — extracted cleanup into separate palmsoftware/quick-cleanup@v0 step before publish

Benefits

• Less boilerplate — replaces manual swap/prune commands
• Docker relocation — automatically moves Docker storage to /mnt (larger partition)
• Adaptive cleanup — adjusts intensity based on available space
• Disk reporting — built-in before/after df -h output
• Maintained upstream — cleanup targets updated as runner images change
• Apache 2.0 licensed