chore(v2): run Jest tests on Windows workflow

[Simek]

Motivation

Currently many Jest tests fails on Windows due to paths issues.

This PR adds additional test run step to Windows workflow (and it is expected to fail).

Have you read the Contributing Guidelines on pull requests?

Yes

Test Plan

N/A

Related PRs

• feat(v2): add ability to set custom title delimiter in config #3460

[docusaurus-bot]

Deploy preview for docusaurus-2 ready!

Built without sensitive environment variables with commit 3c4ddfe

https://deploy-preview-3481--docusaurus-2.netlify.app

[Simek]

Test run results (https://github.com/facebook/docusaurus/pull/3481/checks?check_run_id=1159491792#step:7:5827):

[slorber]

oh, that's unfortunate, didn't know that tests weren't passing on Windows, and it seems a bit of work to get this fixed.

Unfortunately, I don't even have a Windows computer here 😅 not sure what I can do. I know we had windows related fixes recently using path.posix() method and we also have our own posixPath() fn in @docusaurus/utils

For now, we'd better keep this PR as a draft unless someone is willing to actively work on this issue.

[slorber]

Closing for #3540

[slorber]

#3959