Transfer credit card feature flags to group:fulfillment

config/feature_flags/development/ci_require_credit_card_on_free_plan.yml

 ---
 name: ci_require_credit_card_on_free_plan
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61152 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61152
 rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/330104
 milestone: '13.12'
 type: development
-group: group::pipeline execution
+group: group::fulfillment
 default_enabled: false

config/feature_flags/development/ci_require_credit_card_on_trial_plan.yml

 ---
 name: ci_require_credit_card_on_trial_plan
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61152 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61152
 rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/330105
 milestone: '13.12'
 type: development
-group: group::pipeline execution
+group: group::fulfillment
 default_enabled: false

ee/config/feature_flags/development/ci_require_credit_card_for_old_users.yml

 ---
 name: ci_require_credit_card_for_old_users
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61565 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61565
 rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/330706
 milestone: '13.12'
 type: development
-group: group::pipeline execution
+group: group::fulfillment
 default_enabled: false