collab: Set `github_user_created_at` when seeding GitHub users (#17178)

This PR updates the seed script to set the `github_user_created_at`
value for each GitHub user.

Release Notes:

- N/A

Marshall Bowers committed 2y ago

9a8c301a7dcfb9db2aa83c2b84e64ddf828a9336

Parent: 58c0f39

Committed by GitHub <noreply@github.com> on 8/30/2024, 8:40:13 PM