a708eda753
This aligns CI Windows builds with recently shipped deps to support AV1 and RIST as well as providing other updates. * Update FFmpeg from 4.2.4 to 4.4.1 * Update nv-codec-headers from 9.0.18.2 to 11.1.5.0 * Add libaom and SVT-AV1 support (64-bit only) * Add RIST support * Enable multithreading for libvpx obs-deps builds