chore(deps): update ghcr.io/vexxhost/openstack-venv-builder:2023.1 docker digest to 3fc4456 (stable/2023.1)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/vexxhost/openstack-venv-builder	stage	digest	8f0189b → 3fc4456

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

ghcr.io/vexxhost/python-openstackclient:2023.1
ghcr.io/vexxhost/python-openstackclient:stable-2023.1
ghcr.io/vexxhost/python-openstackclient:de46b44

Digest: ghcr.io/vexxhost/python-openstackclient@sha256:d671e7dfe6e3af1e46ea8ebaf90c382c0d4f7bf3d9a36bee979b9c410e407cde