jansson: Update to 2.14
jansson: Update to 2.14

Change source link to upstream GitHub repository
Add pgp key
JPeterMugaas/MSYS2-packages,mati865/MSYS2-packages,waterlan/MSYS2-packages,waterlan/MSYS2-packages,mati865/MSYS2-packages,waterlan/MSYS2-packages,JPeterMugaas/MSYS2-packages,mati865/MSYS2-packages,JPeterMugaas/MSYS2-packages,JPeterMugaas/MSYS2-packages,mati865/MSYS2-packages,waterlan/MSYS2-packages