⬆️ Update docker/setup-buildx-action action to v3.12.0

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -116,7 +116,7 @@ jobs:
       - name: 🏗 Set up QEMU
         uses: docker/setup-qemu-action@v3.6.0
       - name: 🏗 Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3.11.1
+        uses: docker/setup-buildx-action@v3.12.0
       - name: ℹ️ Compose build flags
         id: flags
         run: |