Issue open-horizon#4156 (part2) - Bug: On restart, agbot doesn't upda…

[LiilyZhang]

…te a node even though a new service was added and a deployment policy update occurred

Pull Request Template

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

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Additional Context (Please include any Screenshots/gifs if relevant)

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Checklist:

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• I have performed a self-review of my own code
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• I have added tests that prove my fix is effective or that my feature works
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