Fix static_pointer_cast build failure with virtual inheritance in holder_caster_foreign_helpers.h#6014

oremanj merged 2 commits intopybind:masterpybind/pybind11:masterfrom

rwgk:static_pointer_cast_where_dynamic_pointer_cast_is_neededrwgk/pybind11:static_pointer_cast_where_dynamic_pointer_cast_is_neededCopy head branch name to clipboard