giflib: 5.2.1 -> 5.2.2, apply patch for CVE-2021-40633
Fixes CVE-2023-48161, CVE-2023-39742 and CVE-2021-40633.Changes:https://sourceforge.net/p/giflib/code/ci/5.2.2/tree/NEWS
Thomas Gerbet 2 years ago ce852b43 e87b3a7d