chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:main docker digest to 76f54e5

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:bff09007027c2b6b908e2e970fe5cf06a4c025848e69bad73aa4970aff4978e2 AS build
+FROM ghcr.io/vexxhost/openstack-venv-builder:main@sha256:76f54e5f4fa16bf1289d3884a00952d1ffb196215fa42504e2fa6037373402be AS build
 RUN <<EOF bash -xe
 uv pip install \
     --constraint /upper-constraints.txt \