Update docker/setup-qemu-action action to v4

Author: renovate[bot]

.github/workflows/docker-build.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           username: voidic
           password: ${{ secrets.DOCKER_HUB_TOKEN }}
-      - uses: docker/setup-qemu-action@v1
+      - uses: docker/setup-qemu-action@v4
       - uses: docker/setup-buildx-action@v1
       - name: Build the Docker image
         run: docker buildx build -t ghcr.io/${{ github.repository_owner }}/strfry:latest --platform linux/amd64 --platform linux/arm64 --push .