libffi: Get upstream to release
Based on https://github.com/libffi/libffi, it looks like development is finally active again. We should upstream our changes. Ah they never stopped working, they just won't release. They did make a 3.3 RC-0 in 2018 though.
https://github.com/libffi/libffi/issues/296 is us and others asking for a release.