Update docker/setup-buildx-action action to v3.11.1 (#41)

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

Author: renovate[bot]

.github/workflows/build-docker-images.yml

@@ -62,7 +62,7 @@ jobs:
         uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Build ${{ matrix.target }}
         uses: docker/bake-action@3acf805d94d93a86cce4ca44798a76464a75b88c # v6.9.0

.github/workflows/build-pypy.yml

@@ -42,7 +42,7 @@ jobs:
         uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Build Docker image
         uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
@@ -122,7 +122,7 @@ jobs:
 
       - name: Set up Docker Buildx
         if: steps.file-check.outputs.STATUS == 404
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Run Build
         if: steps.file-check.outputs.STATUS == 404