do not exit after cluster created

Author: Artem

tests/e2e/rte/oss-cluster-7/cluster-create.sh

@@ -8,4 +8,5 @@ echo "yes" | redis-cli \
   172.31.100.211:6379 \
   172.31.100.212:6379 \
   172.31.100.213:6379 \
-  --cluster-replicas 0
+  --cluster-replicas 0 \
+  && redis-server