Update docker/setup-buildx-action action to v4 (master) (#428)

Author: renovate-rancher[bot]

.github/workflows/release.yaml

@@ -30,7 +30,7 @@ jobs:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@06116385d9baf250c9f4dcb4858b16962ea869c3 # v4
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
+        uses: docker/setup-buildx-action@d7f5e7f509e45cec5c76c4d5afdd7de93d0b3df5 # v4
       - name: Build binary
         run: make build ARCH=${{ matrix.arch }}
       - name: Package artifacts