chore(deps): update docker/build-push-action digest to 471d1dc (#639)

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

Author: renovate[bot]

.github/workflows/containers.yml

@@ -80,7 +80,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@ca877d9245402d1537745e0e356eab47c3520991 # v6
+        uses: docker/build-push-action@471d1dc4e07e5cdedd4c2171150001c434f0b7a4 # v6
         with:
           context: ./
           push: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository }}