package/wpewebkit: security bump to version 2.36.8

Bugfix release, with security fixes for CVE-2022-32886 and CVE-2022-32912.
Release notes:

  https://wpewebkit.org/release/wpewebkit-2.36.8.html

Accompanying security advisory:

  https://wpewebkit.org/security/WSA-2022-0009.html



This also imports a build fix for ARM NEON targets.

Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>