start-example: Add docker pull to fetch latest available

We can update "sflinux/vulnscout:latest" on docker hub and a user should be able to get a new version.

Author: ValentinBoudevin

start-example.sh

@@ -104,6 +104,10 @@ fi
 echo "Docker Compose command found: $DOCKER_COMPOSE"
 
 ## Backend Development Environment Setup Script
+
+# Update the docker image if necessary
+docker pull sflinux/vulnscout:latest
+
 # Close any existing docker-compose processes
 docker rm -f vulnscout 2>/dev/null || true