[BUG] Class cast exception when other plugin depends on AD

[Hailong-am]

What is the bug?

1. Skill repo integTest failed due to below error

class org.opensearch.timeseries.transport.GetConfigRequest cannot be cast to class org.opensearch.timeseries.transport.GetConfigRequest (org.opensearch.timeseries.transport.GetConfigRequest is in unnamed module of loader java.net.FactoryURLClassLoader @752973de; org.opensearch.timeseries.transport.GetConfigRequest is in unnamed module of loader java.net.FactoryURLClassLoader @43c39321)","type":"ClassCastException

How can one reproduce the bug?
Steps to reproduce the behavior:

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

What is the expected behavior?
A clear and concise description of what you expected to happen.

What is your host/environment?

• OS: [e.g. iOS]
• Version [e.g. 22]
• Plugins

Do you have any screenshots?
If applicable, add screenshots to help explain your problem.

Do you have any additional context?
opensearch-project/skills#316