shellcheck / shellcheck (push) Failing after 14s
clang-libs and llvm-lit were split off clang and llvm after the archive date, so the old clang and llvm conflicted with their files and the downgrade failed, skipping the scenario. Remove packages from Arch's repos that the archive doesn't have yet before downgrading. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>