Fix fish shell's deprecation warnings when using the `complete` command
Fix fish shell's deprecation warnings when using the `complete` command

Attempting to tab-complete an asdf command would result in a deprecation warning being printed.

The --authoritative/-A and --unauthoritative/-u flags have been removed from the `complete` command.

Context: https://github.com/fish-shell/fish-shell/pull/3660

asdf-vm/asdf,Jwashton/asdf,Stratus3D/asdf