Merge branch 'enable-fix_related_environments_for_merge_requests-by-default' into 'master'

Enable fix_related_environments_for_merge_requests FF by default

See merge request gitlab-org/gitlab!85251

config/feature_flags/development/fix_related_environments_for_merge_requests.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/356642
 milestone: '14.10'
 type: development
 group: group::release
-default_enabled: false
+default_enabled: true