chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2025.1 docker digest to 6dbb7d4 (stable/2025.1)

chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2025.1 docker digest to 6dbb7d4 (stable/2025.1) #1144