feat: :sparkles: add spill storage in be/cn config

[titigmr]

Description

Add in helm chart possibility to add spill_dir storage configuration.

Related Issue(s)

535

Checklist

For helm chart, please complete the following checklist:

• [x] make sure you have updated the values.yaml file of starrocks chart.
• [x] In scripts directory, run bash create-parent-chart-values.sh to update the values.yaml file of the parent chart( kube-starrocks chart).

[CLAassistant]

All committers have signed the CLA.