Build julia for UCRT64

[Dioarya]

Package name

mingw-w64-julia

For which environment do you need the package?

UCRT64

Provide a brief description why you need this package in the selected environment

So I can finally remove the last warning inside my neovim :checkhealth statuses.

Are you willing to submit a PR?

I'm not technically inclined enough to take on such a challenge, so, no.