Sends an invite link to the user's email address.
Email address of the user to invite.
URI to redirect the user to after they open the invite link.
A custom data object to store the user's metadata. This maps to the `auth.users.user_metadata` column.
final UserResponse res = await supabase.auth.admin
.inviteUserByEmail('email@example.com');
final User? user = res.user;