nvim: indent-blankline v2 -> v3

dot_files/.config/nvim/lua/core/plugins/ui/indent-blankline.lua

@@ -23,6 +23,9 @@ return {
     show_current_context = false,
     show_current_context_start = true,
   },
+  config = function(_, opts)
+    require("ibl").setup { indent = { highlight = highlight } }
+  end,
   init = function()
     vim.opt.list = true
     vim.opt.listchars:append "space:⋅"