Subject: 30.0.91; missing some keywords in c++-ts-mode

From: Yang Yingchao <[email-masked]>
Date: Thu, 12 Sep 2024 14:33:50 +0800

Some keywords are missing in `c++-ts-mode`, compared to `c++-mode` (defined
in `cc-langs.el`), notably: "virtual," "thread_local," and maybe others.

Regargs
yang