chore!: allow CreateUser to accept multiple organizations (#14383)

* chore: allow CreateUser to accept multiple organizations

In a multi-org deployment, it makes more sense to allow for multiple
org memberships to be assigned at create. The legacy param will still
be honored.

* Handle sdk deprecation better by maintaining cli functions

site/e2e/api.ts

@@ -36,8 +36,7 @@ export const createUser = async (orgId: string) => {
 		name: name,
 		password: "s3cure&password!",
 		login_type: "password",
-		disable_login: false,
-		organization_id: orgId,
+		organization_ids: [orgId],
 	});
 	return user;
 };