chore(deps): update docker/setup-buildx-action action to v4 (#174)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/release.yaml

@@ -40,7 +40,7 @@ jobs:
       - uses: anchore/sbom-action/download-syft@17ae1740179002c89186b61233e0f892c3118b11 # v0.23.0
 
       - name: Set Up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Set up Cosign
         uses: sigstore/cosign-installer@v4.0.0