chore(deps): update docker/setup-buildx-action action to v2.9.1 (#260)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[docker/setup-buildx-action](https://togithub.com/docker/setup-buildx-action)
| action | minor | `v2.8.0` -> `v2.9.1` |

---

### Release Notes

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

###
[`v2.9.1`](https://togithub.com/docker/setup-buildx-action/releases/tag/v2.9.1)

[Compare
Source](https://togithub.com/docker/setup-buildx-action/compare/v2.9.0...v2.9.1)

- Bump
[@&#8203;docker/actions-toolkit](https://togithub.com/docker/actions-toolkit)
from 0.7.0 to 0.7.1 in
[docker/setup-buildx-action#248
- Fixes an issue where building Buildx does not match the local platform
([docker/actions-toolkit#135)

**Full Changelog**:
docker/setup-buildx-action@v2.9.0...v2.9.1

###
[`v2.9.0`](https://togithub.com/docker/setup-buildx-action/releases/tag/v2.9.0)

[Compare
Source](https://togithub.com/docker/setup-buildx-action/compare/v2.8.0...v2.9.0)

- Bump
[@&#8203;docker/actions-toolkit](https://togithub.com/docker/actions-toolkit)
from 0.6.0 to 0.7.0 in
[docker/setup-buildx-action#246
- Adds support to cache Buildx binary to hosted tool cache and GHA cache
backend

**Full Changelog**:
docker/setup-buildx-action@v2.8.0...v2.9.0

</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 is behind base branch, 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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.github/workflows/build.yml

@@ -96,7 +96,7 @@ jobs:
         with:
           path: artifact
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@16c0bc4a6e6ada2cfd8afd41d22d95379cf7c32a # v2.8.0
+        uses: docker/setup-buildx-action@4c0219f9ac95b02789c1075625400b2acbff50b1 # v2.9.1
 
       - name: Log in to the Container registry
         uses: docker/login-action@465a07811f14bebb1938fbed4728c6a1ff8901fc # v2.2.0