fix: attempt to index field 'uv' (a nil value) on neovim < 0.10

[kaiiserni]

Could not use the plugin because vim.uv is missing in neovim v0.9.5.

[super-jacob]

Looks good, merging. For what it's worth, I'm testing with NVIM v0.9.5 and both this and the old code work for me.