Runner image 20261026.1.0 keeps kernel.apparmor_restrict_unprivileged_userns=1
but loads only three AppArmor profiles, so Chromium's namespace sandbox aborts
(credentials.cc:131 Permission denied) and the cookie-import-native pipe smoke
fails on every job that lands on it. Load a scoped AppArmor profile granting
userns to the resolved Playwright Chromium only, in both Linux jobs that set up
the sandbox helper. The kernel restriction and the SUID helper stay as they are.
Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>