feat: Add method deleteAllAuthenticators to the users management api

[knash94]

Description

Added the deleteAllAuthenticators method to the UsersInterface. This method calls the management api endpoint to delete all authenticators.

Type of change

• New feature (non-breaking change which adds functionality)

Checklist

• My code follows the contributing guidelines of this repo
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass with my changes
• I have read the Auth0 general contribution guidelines
• I have read the Auth0 code of conduct

[github-actions]

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[evansims]

Hey @knash94 👋 Thanks for your contribution! Looks great. I'll get this merged for the next release.