Changes

fix(operator): fix e2e ci job of tidb operator (#3708)

- set dind cgroup-parent to the pod's cgroup
- ensure the pod is guaranteed
- mount a data volume with 500Gi
- set the maximum memory of the nodes of the kind cluster

---------

Signed-off-by: liubo02 <liubo02@pingcap.com>
 (commit: b4ef881)