Disable infinitely_collapsible_sections feature flag

This changes the `default_enabled` from true to false
due to a possible backend issue that needs to be addressed
that makes failed jobs not display all of the content
of a multiple nested collapsible section

config/feature_flags/development/infinitely_collapsible_sections.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/335297
 milestone: '14.1'
 type: development
 group: group::pipeline execution
-default_enabled: true
+default_enabled: false