chore(deps): update docker/build-push-action digest to 64c9b14

Author: renovate[bot]

.github/workflows/publish_docker.yml

@@ -34,7 +34,7 @@ jobs:
             type=ref,event=branch
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        uses: docker/build-push-action@64c9b141502b80dbbd71e008a0130ad330f480f8
         with:
           context: .
           push: true