Update docker/build-push-action digest to 2a7db1d

Author: renovate[bot]

.github/workflows/docker-publish.yml

@@ -72,7 +72,7 @@ jobs:
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
         id: build-and-push
-        uses: docker/build-push-action@9f6f8c940b91232557f8699b21341a08624a8dce
+        uses: docker/build-push-action@2a7db1d68aab1a514ba647f39bcde60888a1753f
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}