Describe the bug
The timestamp precision stored in the config_info table only reaches the second level. If configuration synchronization relies solely on timestamps, concurrent configuration changes occurring within the same second may cause errors in the namespace synchronization logic.

Expected behavior
A clear and concise description of what you expected to happen.

Actually behavior
A clear and concise description of what you actually to happen.

How to Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See errors

Desktop (please complete the following information):

• OS: [e.g. Centos]
• Version [e.g. nacos-server 1.3.1, nacos-client 1.3.1]
• Module [e.g. naming/config]
• SDK [e.g. original, spring-cloud-alibaba-nacos, dubbo]

Additional context
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