multimedia/svt-av1: update to 1.0.0.r2
Changes: https://gitlab.com/AOMediaCodec/SVT-AV1/-/releases/v1.0.0-rc1
Changes: https://gitlab.com/AOMediaCodec/SVT-AV1/-/releases/v1.0.0-rc2
Reported by: Repology
(cherry picked from commit 152bbb33232bb1b74338ea96f6a4732469f0ed0c)