Update aggregate-report credscan version

[sima-zhu]

Description

Please add an informative description that covers that changes made by the pull request and link all relevant issues.
There is a discrepancy between credscan v2 and v3. Use the credscan yml for aggregate-report
Testing: https://dev.azure.com/azure-sdk/internal/_build/results?buildId=1360597&view=results
If an SDK is being regenerated based on a new swagger spec, a link to the pull request containing these swagger spec changes has been included above.

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[sima-zhu]

Close this one and move to the tool PR changes.Azure/azure-sdk-tools#2740