Bump docker/setup-buildx-action from 3.3.0 to 3.4.0 (#55)

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@v3.3.0...v3.4.0)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/tests.yml

@@ -42,7 +42,7 @@ jobs:
       # Set up buildx for multi platform builds
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v3.3.0
+        uses: docker/setup-buildx-action@v3.4.0
 
       # Test container build for all supported platforms (defined above)
       - name: Test Build ${{ matrix.docker-platform }}