chore(deps): update ghcr.io/vexxhost/python-base:2026.1 docker digest to 08703ac (stable/2026.1)

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This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/vexxhost/python-base	final	digest	c081cb3 → 08703ac

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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:fcd8ade
ghcr.io/vexxhost/python-openstackclient:latest

Digest: ghcr.io/vexxhost/python-openstackclient@sha256:0bd2ef483168a7ded1c6582b1f44137fa16c0b2b5125272d21bf0447148dc3a3