[core] sleep, docker logs

.github/workflows/build.yaml

@@ -105,6 +105,8 @@ jobs:
           export GOSS_PATH=/usr/local/bin/goss
 
           docker run -d --name smoke --rm -p3000:3000 ${{ vars.DOCKER_IMAGE }}:${{ matrix.tag }}
+          sleep 3
+          docker logs smoke
           goss validate --retry-timeout 30s --sleep 1s
           docker rm --force smoke