Sign docker image (AST-51994)

[elchananarb]

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Description

Describe the purpose of this PR along with any background information and the impacts of the proposed change.

References

Include supporting link to GitHub Issue/PR number

Testing

Describe how this change was tested. Be specific about anything not tested and reasons why. If this solution has unit and/or integration testing, tests should be added for new functionality and existing tests should complete without errors.

Please include any manual steps for testing end-to-end or functionality not covered by unit/integration tests.

Checklist

• [ ] I have added documentation for new/changed functionality in this PR (if applicable).
• [ ] I have updated the CLI help for new/changed functionality in this PR (if applicable).
• [ ] All active GitHub checks for tests, formatting, and security are passing
• [ ] The correct base branch is being used

[github-actions[bot]]

Checkmarx One – Scan Summary & Details – f0c8aecd-1fcb-4c31-b16e-0392ff42f78d

Policy Management Violations

Policy Name	Rule(s)	Break Build
[SAST-ML0] Not allowed NEW Sast vulnerabilities	true

No New Or Fixed Issues Found