Upgrade plugin to Sylius 1.13 compatibility#12

JanPalen wants to merge 7 commits into

BitBagCommerce:masterBitBagCommerce/SyliusMultiSafepayPlugin:masterfrom

JanPalen:feature/OP-448-upgrade-plugin-to-sylius-1.13-supportJanPalen/SyliusMultiSafepayPlugin:feature/OP-448-upgrade-plugin-to-sylius-1.13-supportCopy head branch name to clipboard