Test suite doesn't properly run on Windows

[ElectronicRU]

erlfmt_formatter_SUITE and sr_formatter_SUITE, which both derive path to test_app from code:priv_dir, fail on Windows, because there it points to _build/test/rebar3_format/priv. I imagine it has something to do with Windows not doing the symlink thing.

This isn't high priority, obviously, but maybe changing the derivation to use __FILE__ could be done.

[elbrujohalcon]

Hi @ElectronicRU … Sadly, none of the current maintainers have Windows here. Would be willing to consider becoming an external collaborator for this project and helping us with that, and any other things you would like to help with, of course? 🙏🏻

[ElectronicRU]

@elbrujohalcon sure thing, so long as you can offer some assistance setting up appropriate CI - it'd take me an unreasonably long time to figure out GitHub's workings of it for such a small change, and I already spent enough figuring GitLab's out ^^"

[elbrujohalcon]

I'm not the CI-guy here… but… I know who can help!!

@paulo-ferraz-oliveira can I use your github-actions expertise yet once more for this project? 🙏🏻

[elbrujohalcon]

@ElectronicRU … you should have a github invitation in your email :)

[paulo-ferraz-oliveira]

Let me try... You want to CI over Windows, right? There's yet no available (that I know of) proper GHA for Windows over OTP 24, but we can work with 23 until either erlef/setup-beam or gleam-lang/setup-erlang get updated.