[clang-tools-extra] [llvm] [Github][CI] Add default gha user for tooling containers (PR #164294)

[Baranov Victor via llvm-commits]

vbvictor wrote:

Thank you for suggestion, I build https://github.com/orgs/llvm/packages/container/package/ci-ubuntu-24.04-format-fix-gha package from this branch locally and tested - it worked.

https://github.com/llvm/llvm-project/pull/164294