chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2025.2 docker digest to 955b242 (#404)

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

Author: renovate[bot]

Dockerfile

@@ -1,7 +1,7 @@
 # SPDX-FileCopyrightText: © 2025 VEXXHOST, Inc.
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-FROM ghcr.io/vexxhost/openstack-venv-builder:2025.2@sha256:862f237bdda116984c27572095877dd8d361561a8c22e8ca0aced2e77d105726 AS build
+FROM ghcr.io/vexxhost/openstack-venv-builder:2025.2@sha256:955b242a6f6782877e1a39b074a09ebaf42909ea86f9736d3d62faefd444ace1 AS build
 RUN --mount=type=bind,from=barbican,source=/,target=/src/barbican,readwrite <<EOF bash -xe
 uv pip install \
     --constraint /upper-constraints.txt \