[clang-tools-extra] [clang-tidy] add option to avoid "no checks enabled" error (PR #96122)

[Piotr Zegar via cfe-commits]

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

if a reason for this parameter is not to fail wrapper scripts, then maybe run-clang-tidy.py / run-clang-tidy-diff.py should also be updated.



https://github.com/llvm/llvm-project/pull/96122