Generate changelog for v1.9.8
Generate changelog for v1.9.8

diimpp/Sylius,SyliusBot/Sylius,101medialab/Sylius,101medialab/Sylius,lchrusciel/Sylius,Zales0123/Sylius,Zales0123/Sylius,loic425/Sylius,Sylius/Sylius,diimpp/Sylius,Sylius/Sylius,loic425/Sylius,Zales0123/Sylius,lchrusciel/Sylius,lchrusciel/Sylius,antonioperic/Sylius,antonioperic/Sylius,SyliusBot/Sylius,loic425/Sylius,Sylius/Sylius,SyliusBot/Sylius,diimpp/Sylius,antonioperic/Sylius,101medialab/Sylius