update libxml2 from 2.9.10 to 2.9.13 The following versions are also available: * 2.9.12 * 2.9.10
update libxml2 from 2.9.10 to 2.9.13
The following versions are also available:
* 2.9.12
* 2.9.10

Signed-off-by: skeshari12 <c680b5d9955c46c8dad4ecc06b5bea9588d924c3@msystechnologies.com>

chef/omnibus-software,chef/omnibus-software,chef/omnibus-software,chef/omnibus-software,chef/omnibus-software,chef/omnibus-software