renovate: Update GitLab to version 15.1.3

This MR contains the following updates:

Package	Update	Change
GitLab	patch	15.1.2-ce.0 -> 15.1.3-ce.0

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

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🔕 Ignore: Close this MR and you won't be reminded about this update again.

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