[clang-tools-extra] [clang-tidy] Do not warn on const variables in misc-use-internal-linkage (PR #97969)

[Congcong Cai via cfe-commits]

https://github.com/HerrCai0907 requested changes to this pull request.

There are some other limitation for const variable to be internal linkage.
Please follow standard to exclude this case
https://eel.is/c++draft/basic.link#3.2.

https://github.com/llvm/llvm-project/pull/97969