Allow to download a fresh DB using `ahoy download-db --no-cache` - Lagoon

[AlexSkrypnyk]

  download-db:
    usage: Download database. Run with "--no-cache" option to force fresh database backup.
    aliases: ['fetch-db']
    cmd: |
      case " $* " in *" --no-cache "*) export VORTEX_DB_DOWNLOAD_NO_CACHE=1;; esac
      ./scripts/vortex/download-db.sh