Update autoredeploy.yml, use docker compose down

change to using docker compose down instead of complicated logic for figuring out old images and containers

.github/workflows/autoredeploy.yml

@@ -11,17 +11,8 @@ jobs:
     runs-on: self-hosted
     steps:
       - uses: actions/checkout@v3
-      - name: Stop and remove containers, then remove images
-        run: |
-          # Find and stop containers running from 'backend:outreach' image, then remove them
-          docker ps -aq --filter ancestor=backend:outreach | xargs -r docker stop | xargs -r docker rm
-
-          # Find and stop containers running from 'frontend:outreach' image, then remove them
-          docker ps -aq --filter ancestor=frontend:outreach | xargs -r docker stop | xargs -r docker rm
-
-          # Now, remove the images
-          docker rmi backend:outreach frontend:outreach || true
-
+      - name: Stop and remove containers and images, using docker compose down
+        run: docker-compose down
       - name: Create .env files
         run: |
           # Create .env with all variables except HOST_URL Backend