Request that the email address tied to an account be verified.
This will send a verification email to the email address of the primary profile containing a link which, once clicked, completes the verification process via the /verify-email endpoint.
Note that when an account is created this email is sent automatically so there's no need to call this directly.
If the user doesn't click the link before it expires then this endpoint can be called to request a new verification email. In the future it may also be used if we add support for changing an account email address.