buildroot

squid: security bump to version 3.5.24

Fixes:
* Mitigate DoS attacks that use client-initiated SSL/TLS renegotiation.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 545100159113c5b432511266018ab21e2dea864d)