Switch to GitLab

Originally created by @Anonymous on #15878 (Redmine)

Team: enrico, hefee, intrigeri, zen

See tails/tails#15186 for the initial rationale.

This work is tracked on https://salsa.debian.org/tails-team/gitlab-migration (at some point during the migration, Redmine will be frozen, so it won’t be a good place to track this work :)

Blueprint: https://tails.boum.org/blueprint/GitLab/

Subtasks

• tails/tails#15186
• tails/tails#17226
• tails/tails#17241
• tails/tails#17242

Related issues

• Related to tails/tails#14516
• Related to tails/sysadmin#9174
• Related to #17266 (closed)
• Related to tails/tails#15864
• Blocks tails/tails#15877
• Blocks tails/sysadmin#9719
• Blocks tails/tails#6927
• Blocks tails/tails#17589
• Blocks #17605 (closed)