Update docker/build-push-action digest to b32b51a

Author: renovate[bot]

.github/workflows/docker.yml

@@ -54,7 +54,7 @@ jobs:
 
       - name: Build and push Docker image
         id: push
-        uses: docker/build-push-action@7e094594beda23fc8f21fa31049f4b203e51096b
+        uses: docker/build-push-action@b32b51a8eda65d6793cd0494a773d4f6bcef32dc
         with:
           context: .
           file: ${{ matrix.dockerfile }}