[PXC] stop instances in order

STR:
1. create cluster
2. write some data into mysql
3. remove cluster
4. create cluster with the same name as in 1) step
Kubernetes start pods in order node-0, node-1, node-2

Expected result:
on step 3 - pod node-0 stopped the latest
on step 4 - new cluster started correctly, data preserved

Current result:
on step 3 - pods removed in random order
on step 4 - [ERROR] WSREP: It may not be safe to bootstrap the cluster from this node.