fzf-maps-n keymap in Lua config

- [x] I have fzf 0.23.0 or above
- [x] I have read through https://github.com/junegunn/fzf.vim/blob/master/README.md
- [x] I have read through https://github.com/junegunn/fzf/blob/master/README-VIM.md
- [x] I have read through the manual page of fzf (`man fzf`)
- [x] I have searched through the existing issues

I am trying to convert my neovim config to lua and trying to figure how I could convert the following to work with lua and paq instead of vim and plug

```
nmap (fzf-maps-n)
```

I tried

```
map('n', '', '(fzf-maps-n)', {})
```

But I think plug was specific to vim-plug