fix(git-integration): depth calculation

[mbani01]

This pull request makes a small change to the logic for calculating batch depth in the clone_service.py. The condition for handling large repositories has been simplified, making the code easier to maintain.

• Simplified the conditional logic in _calculate_batch_depth by removing the explicit check for repositories with up to 5000 branches/tags and instead using an else clause for large repositories, which sets calculated_depth to 5.

[github-actions]

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