Merge branch 'security-11-11-fix-gitlab-api-token-recovery' into '11-11-stable'

Fix gitlab api token recovery

See merge request gitlab/gitlabhq!3294

GITLAB_PAGES_VERSION

-1.5.0
+1.5.1

changelogs/unreleased/security-pages-api-token-recovery.yml

+---
+title: Upgrade pages to 1.5.1 to prevent gitlab api token recovery from cookie
+merge_request:
+author:
+type: security