Neovim: support Windows/osx neovim in tests on CI #2562
Description
we need to support the latest version on all the operating systems so we need to add support for Windows and osx
From #2367 (comment)
these are my tests so far
| OS | neovim | node | Result |
|---|---|---|---|
| linux | stable | v18.20.2/v20.12.1 | pass |
| osx | stable | v18.20.2/v20.12.1 | neovim npm package not found |
| win | stable | v18.20.2/v20.12.1 | config not found |
| linux | v0.10.0 | v18.20.2/v20.12.1 | pass |
| osx | v0.10.0 | v18.20.2/v20.12.1 | pass |
| win | v0.10.0 | v18.20.2/v20.12.1 | config not found |
| linux | v0.9.5 | v18.20.2/v20.12.1 | pass partially (some tests fail) |
| osx | v0.9.5 | v18.20.2/v20.12.1 | pass |
| win | v0.9.5 | v18.20.2/v20.12.1 | config not found |