Update composer.json
Update composer.json

Refs : https://github.com/Sylius/Sylius/pull/870 & https://github.com/Sylius/Sylius/issues/930
MichaelKubovic/Sylius-Standard,Sylius/Sylius-Standard,lchrusciel/Sylius-Standard,lchrusciel/Sylius-Standard,MichaelKubovic/Sylius-Standard,Sylius/Sylius-Standard,akorchaginn/Sylius-Standard,akorchaginn/Sylius-Standard,rpg600/Sylius-Standard,akorchaginn/Sylius-Standard,lchrusciel/Sylius-Standard,rpg600/Sylius-Standard,lchrusciel/Sylius-Standard,Sylius/Sylius-Standard