Updated gdk-pixbuf2.0 packages fix security vulnerabilities

Updated gdk-pixbuf packages fix security vulnerabilities: Security researcher Gustavo Grieco reported a heap overflow in gdk-pixbuf before 2.32.0. This issue is triggered by the scaling of a malformed tga format image and results in a potentially exploitable crash (CVE-2015-7673). Security researcher Gustavo Grieco reported a heap overflow in gdk-pixbuf before 2.32.1. This issue is triggered by the scaling of a malformed gif format image (CVE-2015-7674).