upgrade: Update packages installed via apt, flatpak, and pipx
  usage:
    spm upgrade -[h|Nn|Yyafp]
  options:
    -Yy: Skip confirmation and approve all upgrades
    -Nn: Skip confirmation and approve no upgrades
    -a: Requires root, skip confirmation and approve apt upgrades. Redundant when used with -Yy
    -f: Skip confirmation and approve flatpak updates. Redundant when used with -Yy
    -p: Skip confirmation and approve pipx updates. Redundant when used with -Yy
    -h: Print usage dialogue