graphics/libemf: update to 1.0.13 release

This update fixes a number of vulnerabilities:

CVE-2020-13999 (fixed in 1.0.13)
CVE-2020-11863 (fixed in 1.0.12)
CVE-2020-11864 (fixed in 1.0.12)
CVE-2020-11865 (fixed in 1.0.12)
CVE-2020-11866 (fixed in 1.0.12)

PR: 259590
MFH: 2021Q4
(cherry picked from commit ebe5436797c8854e0ca72cd029642d9f589ee66a)