Generated passwords for users created through integrated authentication

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GitLab allows users to set up accounts through integration with external authentication and authorization providers.

These authentication methods do not require the user to explicitly create a password for their accounts. However, to maintain data consistency, GitLab requires passwords for all user accounts.

For such accounts, we use the friendly_token method provided by the Devise gem to generate a random, unique and secure password and sets it as the account password during sign up.

The length of the generated password is 128 characters.