[git] Disable pre-commit hooks for fixups and amends
[git] Disable pre-commit hooks for fixups and amends

This could break pre-commits but sometimes it's just too slow. I really
don't like pre-commit workflows because of that. I like to commit too
often. I'd rather CI tell me if something is broken.

keith/dotfiles,keith/dotfiles,keith/dotfiles,keith/dotfiles,keith/dotfiles,keith/dotfiles