[Bug] Fix get the earliest time error when data is clean up in tiered storage

[lizhimins]

Before Creating the Bug Report

• I found a bug, not just asking a question, which should be created in GitHub Discussions.

• I have searched the GitHub Issues and GitHub Discussions of this repository and believe that this is not a duplicate.

• I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

Runtime platform environment

[Bug] Fix get earliest time error when data is clean up in tiered storage

RocketMQ version

before develop 5.3.2-SNAPSHOT

JDK Version

JDK11

Describe the Bug

Get earliest time error when data is clean up in tiered storage

Steps to Reproduce

Get earliest time error when data is clean up in tiered storage

What Did You Expect to See?

No error

What Did You See Instead?

Get earliest time success

Additional Context

No response