Change type of feature flag

`development` makes more sense give it's a shot-lived FF.

ee/app/models/gitlab_subscription.rb

@@ -94,7 +94,7 @@ class GitlabSubscription < ApplicationRecord
   # We need to show seats in use for free or trial subscriptions
   # in order to make it easy for customers to get this information.
   def seats_in_use
-    return super unless Feature.enabled?(:seats_in_use_for_free_or_trial, type: :ops)
+    return super unless Feature.enabled?(:seats_in_use_for_free_or_trial)
     return super if has_a_paid_hosted_plan? || !hosted?
 
     seats_in_use_now

ee/config/feature_flags/ops/seats-in-use-for-free-or-trial.yml → ee/config/feature_flags/development/seats_in_use_for_free_or_trial.yml

 ---
-name: seats-in-use-for-free-or-trial
+name: seats_in_use_for_free_or_trial
 introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/44973
-rollout_issue_url: 
-type: ops
+rollout_issue_url:
+type: development
 group: group::provision
-default_enabled: true
+default_enabled: false