This update for cockpit fixes the following issues:

- new version 320:

  * pam-ssh-add: Fix insecure killing of session ssh-agent
    (boo#1226040, CVE-2024-6126)

- changes in older versions:

  * Storage: Btrfs snapshots
  * Podman: Add image pull action
  * Files: Bookmark support
  * webserver: System user changes
  * Metrics: Grafana setup now prefers Valkey
- Invalid json against the storaged manifest boo#1227299