feat: Update social_auth_user UID using CSV from admin panel

[zamanafzal]

Description

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[sameenfatima78]

Awesome work! 👏

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.