Use cygpath for MINGW (Git Bash)

[dahlbyk]

What's the problem this PR addresses?

yarnpkg/yarn#5349

Edit @merceyz :
Doesn't address yarnpkg/yarn#5349 as this repo isn't used for the classic shell script.

How did you fix it?

Also use cygpath for MINGW, similar to https://github.com/yarnpkg/yarn/blob/3119382885ea373d3c13d6a846de743eca8c914b/scripts/build-dist.sh#L8-L10.

Checklist

• I have read the Contributing Guide.

• I have set the packages that need to be released for my changes to be effective.

• I will check that all automated PR checks pass before the PR gets reviewed.

[merceyz]

That file isn't in use by the Yarn classic binary unless you manually grab it from this repo.

[dahlbyk]

That file isn't in use by the Yarn classic binary unless you manually grab it from this repo.

Trying to reconcile this with yarnpkg/yarn#5349 (comment).

[arcanis]

The change looks reasonable so I'm fine with merging it, however as @merceyz mentioned it doesn't have impact on the problem itself, which I think comes from https://github.com/yarnpkg/yarn/blob/3119382885ea373d3c13d6a846de743eca8c914b/bin/yarn.

[dahlbyk]

The change looks reasonable so I'm fine with merging it, however as @merceyz mentioned it doesn't have impact on the problem itself, which I think comes from https://github.com/yarnpkg/yarn/blob/3119382885ea373d3c13d6a846de743eca8c914b/bin/yarn.

I submitted here based on Contributing to yarnpkg/yarn. If a similar patch would be accepted for 1.x, I am glad to submit there.