E2E: Gitlab migration - validate repository migration
What does this MR do and why?
Describe in detail what your merge request does and why.
Validate repository is migrated.
Closes: #345688 (closed)
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR. 
Edited  by andrey