[BUG] don't decrease current revision number when pod is pre-updating

[ABNER-1]

What happened:
When rolling update, we decrease current revision number in status whether pod is in-place updating or pre-updateing.

What you expected to happen:
Don't decrease current revision number when pod is pre-updating

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

Anything else we need to know?:

Environment:

• Kruise version:
• Kubernetes version (use kubectl version):
• Install details (e.g. helm install args):
• Others:

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.