unittests: Fix memory leak in torture_pki_ed25519
unittests: Fix memory leak in torture_pki_ed25519

Signed-off-by: Andreas Schneider <5be00ddc76278cf6077f5047ca3384a88460c671@cryptomilk.org>

wangshawn/libssh,taikoo/libssh,mwgoldsmith/ssh,taikoo/libssh,pouete/libssh,Distrotech/libssh,Distrotech/libssh,wangshawn/libssh,nviennot/libssh,taikoo/libssh,Distrotech/libssh,mwgoldsmith/libssh,sebadoom/libssh,DouglasHeriot/libssh,wangshawn/libssh,sebadoom/libssh,pouete/libssh,Distrotech/libssh,kedazo/libssh,mwgoldsmith/libssh,kedazo/libssh,DouglasHeriot/libssh,mwgoldsmith/libssh,nviennot/libssh,mwgoldsmith/libssh,mwgoldsmith/ssh,taikoo/libssh,nviennot/libssh,kedazo/libssh,DouglasHeriot/libssh,sebadoom/libssh,pouete/libssh,kedazo/libssh,DouglasHeriot/libssh,mwgoldsmith/ssh,pouete/libssh,mwgoldsmith/ssh,wangshawn/libssh,sebadoom/libssh,nviennot/libssh