[BUG] warning of hostname in mount pod creating

[zwwhdls]

What happened:
W1010 07:28:19.409275 7 warnings.go:70] metadata.name: this is used in the Pod's hostname, which can result in surprising behavior; a DNS label is recommended: [must be no more than 63 characters]

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?

Environment:

• JuiceFS CSI Driver version (which image tag did your CSI Driver use):
• Kubernetes version (e.g. kubectl version):
• Object storage (cloud provider and region):
• Metadata engine info (version, cloud provider managed or self maintained):
• Network connectivity (JuiceFS to metadata engine, JuiceFS to object storage):
• Others:

[zxh326]

fixed by #1043 ?

[zwwhdls]

issue is still here