chore(deps): update docker/setup-buildx-action action to v3.1.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
docker/setup-buildx-action	action	minor	v3.0.0 -> v3.1.0

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Release Notes

docker/setup-buildx-action (docker/setup-buildx-action)

### [`v3.1.0`](https://togithub.com/docker/setup-buildx-action/compare/v3.0.0...v3.1.0) [Compare Source](https://togithub.com/docker/setup-buildx-action/compare/v3.0.0...v3.1.0)

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Configuration

📅 Schedule: Branch creation - "every weekend" in timezone Asia/Tokyo, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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

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• [ ] If you want to rebase/retry this PR, check this box

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