0.40.0-opengl

• mpv version: v0.40.0 (changelog)
• ffmpeg version: n8.0 (changelog)
• placebo version: v7.351.0-xcode
• MoltenVK version: v1.4.0-xcode

What's Changed

• fix: fix opengl rendering 10bit videos bluescreen #42
• libass bump version to 0.17.4 by @github-actions[bot] in #52

Full Changelog: 0.40.0-xcode...0.40.0-opengl