package/glib-networking: bump to 2.58.0

package/glib-networking: bump to 2.58.0

In 2.56.1 (when tested in a namespace sandbox that restricted what
the build could see on the host system), it was discovered that the
glib-networking build would check in /etc for the Certificate Authority
files. The newer version of this package no longer tests the build time
location of the Certificate Authority and resolves these build failures.

Fixes:
http://autobuild.buildroot.net/results/8f8/8f83be0c21c21c07d5a7330f3626b739b1970625
(and others http://autobuild.buildroot.net/?reason=glib-networking-2.56.1)

Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>