chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2023.2 docker digest to c55d8c6 (#554)

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

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 # Atmosphere-Rebuild-Time: 2024-06-26T17:38:39Z
 
-FROM ghcr.io/vexxhost/openstack-venv-builder:2023.2@sha256:d619b8d3e6ee1ec2744b0f3afb6b77a256ea5b349cd92b8096c62ce680034adf AS build
+FROM ghcr.io/vexxhost/openstack-venv-builder:2023.2@sha256:c55d8c6e6c9ceb27dc6ac4b5c67e846dc495e6d9fe9d390597354d609aba4902 AS build
 RUN <<EOF bash -xe
 uv pip install \
     --constraint /upper-constraints.txt \