DOC: list missing global QUIC settings

DOC: list missing global QUIC settings

Complete list of global keywords with missing QUIC entries.

This could be backported to stable versions. This requires to take into
account the version of introduction for each keyword.
* limited-quic, introduced in 2.8
* no-quic, introduced in 2.8
* tune.quic.cc.cubic.min-losses, introduced in 3.1

(cherry picked from commit 7fa812a1ac2721d9290900b3467fd80110f15cc7)
Signed-off-by: Amaury Denoyelle <adenoyelle@haproxy.com>
(cherry picked from commit 0b4d823b3e6056a7a8465c744b7ad69537245871)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>