chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2026.1 docker digest to d9126a3 (stable/2026.1)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/vexxhost/openstack-venv-builder	stage	digest	157547c → d9126a3

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renovate[bot]
This pull request has been included in the following image tags:

ghcr.io/vexxhost/python-openstackclient:2026.1
ghcr.io/vexxhost/python-openstackclient:stable-2026.1
ghcr.io/vexxhost/python-openstackclient:a101c4b
ghcr.io/vexxhost/python-openstackclient:latest

Digest: ghcr.io/vexxhost/python-openstackclient@sha256:aa5d8a53ae32f220d5fc42ae01b84f774752b1e08f3c3b8e9f6aee0debaea24c