Enable assign resource v2 by default

AssignResourceFromResourceGroupWorker
  has a deduplicate method of until_executed.
AssignResourceFromResourceGroupWorkerV2
  has deduplicate=until_executing.
This enables the V2 behavior by default.

Changelog: changed

config/feature_flags/gitlab_com_derisk/assign_resource_worker_deduplicate_until_executing.yml → config/feature_flags/beta/assign_resource_worker_deduplicate_until_executing.yml

@@ -5,5 +5,5 @@ introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/152303
 rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/460793
 milestone: '17.1'
 group: group::environments
-type: gitlab_com_derisk
-default_enabled: false
+type: beta
+default_enabled: true