Log Message:
libva: update to 2.19.0.

version 2.19.0 - 04.Jul.2023
* docs: fix references and descriptions snf focyhrn mstkup
* ci: add build docs test
* win: change default driver search path to bindir
* win: rely on compiler to define link names
* add: Add mono_chrome to VAEncSequenceParameterBufferAV1
* add: Enable support for license acquisition of multiple protected playbacks
* fix: year for version 2.18.0 in NEWS
* fix: use secure_getenv instead of getenv
* trace: Improve and add VA trace log for AV1 encode
* trace: Unify va log message, replace va_TracePrint with va_TraceMsg.