[clang-tools-extra] [clang-tidy][run-clang-tidy] Fix minor shutdown noise (PR #105724)

[Nicolas van Kempen via cfe-commits]

nicovank wrote:

I'm going to go ahead and merge this. IMO this doesn't need backporting because 1. it only happens on abnormal exit where users probably wouldn't be surprised to see a stacktrace anyway, and 2. there is no regression really (check prior to asyncio change also had some noise after Ctrl+C message). But if someone thinks otherwise I'll stamp it 👍.

https://github.com/llvm/llvm-project/pull/105724