[clang-tools-extra] [llvm] [GitHub][WIP] Run clang-format inside ci-container (PR #160193)

[Baranov Victor via llvm-commits]

vbvictor wrote:

> This is just a duplicate of https://github.com/llvm/llvm-project/pull/161073?

Yes, I'm testing how everything works here


https://github.com/llvm/llvm-project/pull/160193