according to
e118ce58da
## Description
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maintainers
why we should accept this pull request. -->
fixed _available_servers is nil bug.
## Related Issue(s)
https://github.com/folke/neoconf.nvim/issues/104
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If this PR fixes any issues, please link to the issue here.
- Fixes #<issue_number>
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## Screenshots
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This does make the neovim requirement for health 0.9.0, but
nvim-treesitter will soon deprecate most of its "plugin" functionality
and solely serve as an installer of parsers, and any plugin
functionality should rely on the upstream `vim.treesitter` module