chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2023.1 docker digest to 438d7a1 (stable/2023.1)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/vexxhost/openstack-venv-builder	stage	digest	d070af4 → 438d7a1

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

ghcr.io/vexxhost/placement:2023.1
ghcr.io/vexxhost/placement:stable-2023.1
ghcr.io/vexxhost/placement:f458167
ghcr.io/vexxhost/placement:latest

Digest: ghcr.io/vexxhost/placement@sha256:34acc6fc4dcfeca238da99b5ad2725407f9dd6c15f8abd409ea2c6e65521c9d1