chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2025.2 docker digest to c559b33 (stable/2025.2)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/vexxhost/openstack-venv-builder	stage	digest	1102360 → c559b33

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

ghcr.io/vexxhost/python-openstackclient:2025.2
ghcr.io/vexxhost/python-openstackclient:stable-2025.2
ghcr.io/vexxhost/python-openstackclient:f6c2043
ghcr.io/vexxhost/python-openstackclient:latest

Digest: ghcr.io/vexxhost/python-openstackclient@sha256:46045268184e64d9687aaf7fa78e21d2cb315f694bc6c67a8feccfdb7725366e