chore(deps): update docker/build-push-action digest to 8c1e8f8 (#26)

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

Author: renovate[bot]

.github/workflows/publish.yml

@@ -60,7 +60,7 @@ jobs:
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
         id: build-and-push
-        uses: docker/build-push-action@14487ce63c7a62a4a324b0bfb37086795e31c6c1
+        uses: docker/build-push-action@8c1e8f8e5bf845ba3773a14f3967965548a2341e
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}