fix: pin base image digests for stable/2024.2

Signed-off-by: Claude <noreply@anthropic.com>

Author: mnaser

Dockerfile

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 # Atmosphere-Rebuild-Time: 2025-02-20T21:42:46Z
 
-FROM ghcr.io/vexxhost/openstack-venv-builder:2024.2 AS build
+FROM ghcr.io/vexxhost/openstack-venv-builder:2024.2@sha256:1010757416068f5a14c04bbe478846c271353353472435105ff56b57190c9225 AS build
 RUN <<EOF bash -xe
 uv pip install \
     --constraint /upper-constraints.txt \
@@ -20,7 +20,7 @@ uv pip install \
         python-swiftclient
 EOF
 
-FROM ghcr.io/vexxhost/python-base:2024.2
+FROM ghcr.io/vexxhost/python-base:2024.2@sha256:ee93b4b616878eabea5775e94257c88c808656307fa85f92e14b9f3e48d49e66
 COPY --from=build --link /var/lib/openstack /var/lib/openstack
 
 # NOTE(mnaser): The Magnum client relies on the SHELL environment variable