feat(dependencies): show only installed package managers in choices

[6km]

Check if the package manager is installed by running its command with --version, and only show installed package managers in choices.

[yusukebe]

Hi @6km

This is awesome!

Looks good, but can we write the test for this feature? It's ok to go without a test if it's super difficult, but I want to check if the choices appear properly.

[6km]

@yusukebe I couldn't figure out a good way to add tests for this feature.

[6km]

@yusukebe I have tested this locally with npm, pnpm and yarn. It works as expected. Can you test if it can detect bun?

[yusukebe]

Hi @6km

Yes. It can detect bun! I think we can go with this without adding more tests. Is this ready to merge?

[6km]

Hi @yusukebe

Yes. It's ready to merge! 🚀

[yusukebe]

@6km

Let's gooo! Thanks!

[6km]

@yusukebe You're welcome. More contributions coming in the future, insha'allah.