From d226909dce7dd303a43d15f2a67c8df7d547ae2f Mon Sep 17 00:00:00 2001
From: Yilin Chen <sticnarf@gmail.com>
Date: Tue, 16 Aug 2022 17:12:51 +0800
Subject: [PATCH] *: update client-go to optimize region cache after merging
 many regions (#37142)

close pingcap/tidb#37141