Update to newest mitsuba3

Description

Fixes # (issue)

[ ] My code follows the style guidelines of this project
[ ] My changes generate no new warnings
[ ] My code also compiles for cuda_* and llvm_* variants. If you can't test this, please leave below
[ ] I have commented my code
[ ] I have made corresponding changes to the documentation
[ ] I have added tests that prove my fix is effective or that my feature works
[ ] I cleaned the commit history and removed any "Merge" commits
[ ] I give permission that the Mitsuba 3 project may redistribute my contributions under the terms of its license