fix(nvim): Use capture.capture instead of capture.hl_group

hl_group name of comment by tree-sitter has changed.

before:
  capture.hl_group → "@comment"

now:
  capture.hl_group → "@comment.${LANG}"

lua/caw.lua

@@ -46,7 +46,7 @@ function M.has_syntax(lnum, col)
     local items = vim.inspect_pos(bufnr, lnum - 1, col - 1)
     if #items.treesitter > 0 then
       for _, capture in ipairs(items.treesitter) do
-        if capture.hl_group == "@comment" then
+        if capture.capture == "comment" then
           return true
         end
       end