BUG/MINOR: config/server: reject QUIC addresses

BUG/MINOR: config/server: reject QUIC addresses

QUIC is not implemented on the backend side. To prevent any issue, it is
better to reject any server configured which uses it. This is done via
_srv_parse_init() which is used both for static and dynamic servers.

This should be backported up to all stable versions.

(cherry picked from commit 1ecf2e9babe9d2505cebfc9e0f64454be66c2905)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 4b2ae7c9c644b5b27af732dc15df3d2fc7558693)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>