Neovim: support legacy neovim in tests on CI

[saidelike]

ATM we don’t support tests against legacy neovim. I noticed some tests are failing so will need to be fixed. We would want to target neovim 9.5.0 presumably. we need to support that only on Linux for instance

[saidelike]

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

[pokey]

we only run legacy tests on linux anyway, so maybe we should just use v0.10.0 as legacy?

[pokey]

Tried to run them in d9ce94c; if that doesn't work I'll bail. Just figured I'd try to see if it were easy

[pokey]

Yep seems to work fine! I know 0.10.0 isn't very old, but I'm happy to just call that legacy for now. But I'll defer to the neovim folks to decide whether that's legacy enough or if we want to invest in working on older neovim versions. At least though we'll guarantee we continue to work on 0.10.0 even as neovim keeps evolving and our codebase does too

[saidelike]

Yep seems to work fine! I know 0.10.0 isn't very old, but I'm happy to just call that legacy for now. But I'll defer to the neovim folks to decide whether that's legacy enough or if we want to invest in working on older neovim versions. At least though we'll guarantee we continue to work on 0.10.0 even as neovim keeps evolving and our codebase does too

As mentioned in other issue, happy for neovim 0.10.0 to be legacy.

Currently stable is 0.10.1 and soon it will be 0.11.0.

So I think we can change the title to be targeting legacy and marked as done. And create another issue for Windows/OSX?

[pokey]

Sounds good!