Bump pillow from 5.2.0 to 8.1.1 in /libs/gltf2usd-master#3

dependabot[bot] wants to merge 1 commit intomasterparallax/ar-export:masterfrom

dependabot/pip/libs/gltf2usd-master/pillow-8.1.1parallax/ar-export:dependabot/pip/libs/gltf2usd-master/pillow-8.1.1Copy head branch name to clipboard