Make integration.sh not fail when compose up succeeded (#190)

The change added in #188 not only
prints out the logs if container is unhealthy but also exits and manage to
not run the tests when there is nothing wrong with the containers.

This commit fixes incorrect behavior in case all containers are healthy and only
exits if one of the containers is unhealthy.

integration.sh

@@ -12,7 +12,7 @@ function scylla_up() {
 
   echo "==> Running Scylla ${SCYLLA_IMAGE}"
   docker pull ${SCYLLA_IMAGE}
-  docker compose up -d --wait || docker compose ps --format json | jq -M 'select(.Health == "unhealthy") | .Service' | xargs docker compose logs && exit 1
+  docker compose up -d --wait || ( docker compose ps --format json | jq -M 'select(.Health == "unhealthy") | .Service' | xargs docker compose logs; exit 1 )
 }
 
 function scylla_down() {