Draft: redirects: Support redirect backed by a map

We need a lot of redirect for bugs.al.org->GitLab (there is over 70k tasks) and using a map is simple and efficient.

Ref #320 (closed)

TODO:

• Does it even work?
• How well does it performs with 70k redirects?
• How do we handle the certificate pre-bugs.al.org shutdown?

added 1 commit

• 44acebb2 - default redirect

Compare with previous version

changed the description

Superseded by !419 (merged).

closed