The ubuntu-latest runner uses Docker containers (ghcr.io/catthehacker/ubuntu:act-22.04) which don't have task or dagger pre-installed. These steps were mistakenly removed when switching from the dagger-dagger host runner back to ubuntu-latest. Also adds DAGGER_NO_NAG=1 to all dagger-invoking steps. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>