chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2025.2 docker digest to 1981949 (#135)

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: 2025-10-14T10:18:12Z
 
-FROM ghcr.io/vexxhost/openstack-venv-builder:2025.2@sha256:c71825407183b285f7f993eaa717827bfeb6a200e2836406a1a6fb1dd3baa568 AS build
+FROM ghcr.io/vexxhost/openstack-venv-builder:2025.2@sha256:1981949a4e80d38f8af5f029d241dac4c6cc5b5b0352150fef8ddb464c968409 AS build
 RUN <<EOF bash -xe
 uv pip install \
     --constraint /upper-constraints.txt \