ci: add weekly GHCR image retention cleanup (keep last 5)#61
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Adds a scheduled (weekly, Sun 04:00 UTC) + manually dispatchable workflow that prunes old container versions from GHCR, keeping the 5 most recent tagged versions and removing older/untagged ones. Uses snok/container-retention-policy@v3.1.0, which auto-protects the multi-arch/attestation child manifests of kept images so the provenance manifests from the release build are not broken. A 1h cut-off shields freshly pushed releases, and workflow_dispatch exposes a dry-run toggle.
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Adds
.github/workflows/cleanup-images.yaml: a weekly (Sun 04:00 UTC) + manually dispatchable workflow that prunes old GHCR container versions for theriptide-collectorimage, keeping the 5 most recent tagged versions and removing older/untagged ones.Uses
snok/container-retention-policy@v3.1.0, which auto-protects multi-arch/attestation child manifests of kept images (the release build viadocker/build-push-action@v7emits provenance attestations, so the naive untagged-cleanup ofactions/delete-package-versionswould break tagged images). Acut-off: 1hshields freshly pushed releases;workflow_dispatchhas a dry-run toggle.Mirrors the same workflow added to slopr (#167).