Support Changing Execution Requirement from DISABLED to REQUIRED for Built-in Flows

[netalkGB]

Description

I would like to request support for modifying the execution requirement of built-in flows, specifically changing the setting from DISABLED to REQUIRED. This is something that can already be done through the UI, but there is currently no straightforward way to achieve this with Terraform.

I attempted to modify the requirement of an execution in a built-in flow, but encountered the following issues:

1. Instead of changing the execution's requirement, it tries to add a new execution to the built-in flow, resulting in an error. (when not using the import block)
2. Even when attempting to use an import block, it is not possible to retrieve the execution ID because the execution is automatically created when the realm is created, and the ID is unknown.
   Here is the configuration I tried:

import {
  id = "realm1/registration form/${var.executionId}" # ${var.executionId} cannot be imported as it is generated during realm creation
  to = keycloak_authentication_execution.registration_form_flow_execution
}
resource "keycloak_authentication_execution" "registration_form_flow_execution" {
  realm_id          = keycloak_realm.realm.id
  parent_flow_alias = "registration form"
  authenticator     = "registration-terms-and-conditions"
  requirement       = "REQUIRED"
  depends_on        = [keycloak_realm.realm]
}

Discussion

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Motivation

I would like to request support for modifying the execution requirement of built-in flows, specifically changing the setting from DISABLED to REQUIRED. Since this is a setting that can be modified through the GUI, it should also be possible to achieve this with Terraform.
In environments where deployments have already occurred, the execution requirements of built-in flows may have been modified through the GUI. In such cases, creating new flows with Terraform would introduce unnecessary differences, which we want to avoid.

Details

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