Last August, the excellent Gitlab forge migrated to Google Cloud : -(
https://about.gitlab.com/blog/2018/07/19/gcp-move-update/
As a direct consequence, the site is no longer accessible from several countries. Indirect consequence: sysadmin and developpers in these same countries can no longer download Gitlab's source code to install it on their servers.
@Framasoft provides a mirror of Gitlab Debian repositories: https://apt.gitlab.mirror.framasoft.org/
Feel free to share the information (in other languages if possible).