Fix pseudo with python 3.13 by adding a wrapper for posix_spawn and
fixing a NULL pointer dereference in envp handling it uncovered. This
fixes issues on Fedora 41.
(From OE-Core rev: 111024b00dab52e6c1e382d931f97af4b90d7683)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit d80e20d70d170397f9827c5a5fc75ad1f2e8cd94)
Signed-off-by: Steve Sakoman <steve@sakoman.com>