chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2025.2 docker digest to 296741e

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Dockerfile

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 # Atmosphere-Rebuild-Time: 2025-10-14T10:18:12Z
 
-FROM ghcr.io/vexxhost/openstack-venv-builder:2025.2@sha256:c16ba5d44beae602145877b7d58699ae0cce479c5effc5f2e66851ed50a08c2c AS build
+FROM ghcr.io/vexxhost/openstack-venv-builder:2025.2@sha256:296741ebfe37aa5ae7e3aaae577ef0a05f8cd95bd812f9438b2e50e0754976de AS build
 RUN <<EOF bash -xe
 uv pip install \
     --constraint /upper-constraints.txt \