Fix build APPX packages on version 2021.X.X and higher #520

aleksandr-dorofeev wants to merge 4 commits intodevelopmicrosoft/appcenter-sdk-unity:developfrom

v-adorofeev/fix-build-on-new-versionsmicrosoft/appcenter-sdk-unity:v-adorofeev/fix-build-on-new-versionsCopy head branch name to clipboard