Blender Git Commit Log

Update our USD 21.02 patch to support gcc-11

There are two issues in USD code that break building it with gcc-11,
one (in `demangle.cpp`) was already fixed upstream, the other (in
`singularTask.h`) is still pending (reported upstream, see
https://github.com/PixarAnimationStudios/USD/issues/1721).

CC #platforms_builds_tests_devices project.