Enable new rich text/source toggle in self-managed

Enable the new switch between rich text and source
editing toggle in self-managed instances by
default

Changelog: changed

config/feature_flags/development/wiki_switch_between_content_editor_raw_markdown.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/345398
 milestone: '14.6'
 type: development
 group: group::editor
-default_enabled: false
+default_enabled: true