fix: st4 download link

[gerardroche]

This should fix a "could not download Sublime Text binary" error:

https://github.com/gerardroche/sublime-monokai-free/runs/6666517409?check_suite_focus=true

It's difficult to test this because I had to hack the code to change the urls to point to my forked repository. When I tested I still got another error trying to install xz-utils, but that might just be because of the way I was testing it.

https://github.com/gerardroche/sublime-monokai-free/runs/6667187169?check_suite_focus=true

[randy3k]

The code under the sbin directory is deprecated. Please use the updated GitHub action snippet： https://github.com/SublimeText/UnitTesting#github-actions

[gerardroche]

Cool. How do I run color scheme unit tests?

[gerardroche]

I just updated the NeoVintageous test suite with the new UnitTesting github actions and was able to enable CI for OS and Windows for both ST3 and ST4. I wasn't able to do that with using the previous code. It also simplifies CI a lot. Good work.

https://github.com/NeoVintageous/NeoVintageous/commit/e266f89a4e22f6f1f3ab983ff10aa2ba65141d8a

[randy3k]

I have forgotten about the color scheme tests. Let me work on it as soon as possible.

[gerardroche]

Thanks. There's no hurry.