chore(deps): update docker/build-push-action digest to 729f7f4

Author: renovate[bot]

.github/workflows/publish.yml

@@ -42,7 +42,7 @@ jobs:
       # It uses the `context` parameter to define the build's context as the set of files located in the specified path. For more information, see "[Usage](https://github.com/docker/build-push-action#usage)" in the README of the `docker/build-push-action` repository.
       # It uses the `tags` and `labels` parameters to tag and label the image with the output from the "meta" step.
       - name: Build and push Docker image
-        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+        uses: docker/build-push-action@729f7f49266dec5e72fe7339273d3f7e65abacd7
         with:
           context: .
           push: true