update property name for should_create_user

[silentworks]

What kind of change does this PR introduce?

Bug fix

What is the current behavior?

Currently the should_create_user property is incorrectly named inside the sign_in_with_otp method

What is the new behavior?

The should_create_user property is correctly named inside the sign_in_with_otp method

Additional context

Add any other context or screenshots.

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