Merge branch 'security-2770-verify-bundle-import-files-11-4' into 'security-11-4'
[11.4] Validate bundle files before unpacking them See merge request gitlab/gitlabhq!2776 (cherry picked from commit 6176b02aa6577079986410719884bd253dc5e7be) e5e5e77e Validate bundle files before unpacking them