fix: Fix .mjs extension removal

[danielfalk]

This fixes an installation error with mise (possibly affects asdf as well?):

mv: cannot move '.local/share/mise/installs/ni/0.21.12/bin/na.mjs' to '.local/share/mise/installs/ni/0.21.12/bin/na/': Not a directory

Mise is intended as a drop-in replacement for asdf, but installing ni fails while trying to remove the .mjs extension. I would imagine asdf fails as well but I don't have that installed anymore.

This fix worked for me, so I thought I'd contribute it back

[CanRau]

Hey thank you for the PR.
I guess you're referring to this https://mise.jdx.dev right?
Looks actually pretty interesting, might even switch to mise myself ^^ was just reading the comparison and asdf's shims are my biggest "dislike" as well 👀

[CanRau]

@danielfalk Though wouldn't it be possible to install ni directly via mise's npm backend?

[danielfalk]

Thanks for pointing this out. I hadn't seen it. It is experimental, so there's that, but this could be nice!

[CanRau]

Just installed mise via brew then

1. m settings set experimental true
2. m use -g npm:@antfu/ni
3. mx ni --help

Have the following aliases set up

alias m="mise"
alias mx="mise exec --"
alias mr="mise run --"

So seems to work pretty good so far 🥳

Thanks for bringing mise to my attention ❤️