ffx_fsr3.cpp contextPrivate->upscalingOnly is not initialized

[svatostop]

Hi! We are trying to integrate FSR3 to the project using sources from sdk/ folder.
We are running on Windows/Linux using Vulkan.

ffxFsr3ContextCreate was returning FFX_ERROR_INCOMPLETE_INTERFACE error even tho backend interface was set up correctly and FFX_FSR3_ENABLE_UPSCALING_ONLY flag was set.
changing contextPrivate->upscalingOnly to initialized local variable upscalingOnly fix the issue