build(deps): update docker/setup-buildx-action digest to e468171

Author: renovate[bot]

.github/workflows/publish.yml

@@ -100,7 +100,7 @@ jobs:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@18ce135bb5112fa8ce4ed6c17ab05699d7f3a5e0 # v3
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3
         with:
           platforms: linux/amd64,linux/arm64
 

.github/workflows/push-mps-baseimage.yml

@@ -20,7 +20,7 @@ jobs:
         uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@18ce135bb5112fa8ce4ed6c17ab05699d7f3a5e0 # v3
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3
         with:
           platforms: linux/amd64,linux/arm64