fix: update gh-aw-actions/setup SHA in workflow tests to v0.79.4 (#4720)

PR #4714 recompiled all workflows, bumping the pinned action from
v0.79.2 (9b1d7307) to v0.79.4 (d059700c) but didn't update the
test assertions that verify the lock files contain the correct SHA.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: lpcox