Get a list of users.
What page of users to return.
How many users to be returned per page. Defaults to 50.
// Returns the first 50 users.
final List<User> users = await supabase.auth.admin.listUsers();
// Returns the 101th - 200th users.
final List<User> res = await supabase.auth.admin.listUsers(
page: 2,
perPage: 100,
);