avoid race condition in syncup model state refresh and handle NP of I…

[Zhangxunmt]

Description

Avoid race condition in sync up job to un-deploy expired models and refresh model states. Without this change, the sync up job sometimes sets wrong Model State after model is un-deployed. Default AutoDeploy to enabled when it's a null value.

Verified and tested in local 2.14 cluster.

Issues Resolved

[List any issues this PR will resolve]

Check List

• [ ] New functionality includes testing.
  • [ ] All tests pass
• [ ] New functionality has been documented.
  • [ ] New functionality has javadoc added
• [ ] Commits are signed per the DCO using --signoff

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