chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2025.1 docker digest to 977dce8 (#358)

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: 2024-06-25T22:49:25Z
 
-FROM ghcr.io/vexxhost/openstack-venv-builder:2025.1@sha256:47352cef9c9a22e2f901949d0e4225e9189c4cc3ad86699e71d15059f11e7042 AS build
+FROM ghcr.io/vexxhost/openstack-venv-builder:2025.1@sha256:977dce880f5f0182f3f7076acaaa0068e5f8699bd8fd2b0b05f28fe064e3f06f AS build
 RUN <<EOF bash -xe
 uv pip install \
     --constraint /upper-constraints.txt \