chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:main docker digest to 18f5b69

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: 2024-06-25T22:49:25Z
 
-FROM ghcr.io/vexxhost/openstack-venv-builder:main@sha256:d188e5f760d805da5e6f6a325c6cb30fb0f8c478821010c9fb66e519ad066b52 AS build
+FROM ghcr.io/vexxhost/openstack-venv-builder:main@sha256:18f5b69a5216033dd3ef052a0eee0b66d6bda94ee4e7618fa8d8636fd615a0c4 AS build
 RUN <<EOF bash -xe
 uv pip install \
     --constraint /upper-constraints.txt \