Update BASE_URL in CI workflow to use Docker IP

Author: APapafragkakis

.github/workflows/ci.yml

@@ -119,7 +119,8 @@ jobs:
         with:
           filename: load-tests/smoke.js
         env:
-          BASE_URL: http://localhost:8000
+          env:
+          BASE_URL: http://172.17.0.1:8000
       - name: Stop services
         if: always()
         run: docker compose down -v