fix: nil pointer issue in manual sync api

[Ash-exp]

Description

The Manual Sync API for deployment status is throwing nil pointer deference.

Fixes #4677

How Has This Been Tested?

• Deployment Status Timeline API
• Deployment Status Manual Sync API

Checklist:

• The title of the PR states what changed and the related issues number (used for the release note).
• Does this PR requires documentation updates?
• I've updated documentation as required by this PR.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have tested it for all user roles.
• I have added all the required unit/api test cases.

Does this PR introduce a user-facing change?

[sonarcloud]

Quality Gate passed

Issues
0 New issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud