Update docker/build-push-action digest to ee4ca42

Author: renovate[bot]

.github/workflows/docker-publish.yml

@@ -88,7 +88,7 @@ jobs:
 
       - name: Build and push Docker image to both registries
         id: build-and-push
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83
+        uses: docker/build-push-action@ee4ca427a2f43b6a16632044ca514c076267da23
         with:
           context: .
           file: Dockerfile