Update docker/setup-buildx-action action to v3 (#34)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[docker/setup-buildx-action](https://github.com/docker/setup-buildx-action)
| action | major | `v2` -> `v3` |

---

### Release Notes

<details>
<summary>docker/setup-buildx-action
(docker/setup-buildx-action)</summary>

###
[`v3`](https://github.com/docker/setup-buildx-action/compare/v2...v3)

[Compare
Source](https://github.com/docker/setup-buildx-action/compare/v2...v3)

</details>

---

### Configuration

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

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **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.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

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.github/workflows/build.yml

@@ -33,7 +33,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Docker
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Build Docker image
         run: |