Use triple double quotes enclosing a string literal to interpret it
as unescaped, in order to use `?` for marking query params and avoid
user confusion. `?` also usually implies regex expressions.
Any character inside the `"""` beginning-closing markings is considered
raw and the only thing that is not permitted is the `"""` sequence itself.
If a user wants to use that, needs to resort to the normal `"` string literal
and use proper escaping.
Relates to #61659
(cherry picked from commit d87c2ca2eacab5552bca1e520d33cf71da40bcfd)
7d74fb8577