fix: type fixes

Type fixes caught by emmylua

runtime/lua/vim/_init_packages.lua

@@ -86,7 +86,7 @@ setmetatable(vim, {
 })
 
 --- <Docs described in |vim.empty_dict()| >
----@private
+---@nodoc
 --- TODO: should be in vim.shared when vim.shared always uses nvim-lua
 --- @diagnostic disable-next-line:duplicate-set-field
 function vim.empty_dict()