v4.0.0-rc1

ibexa/graphql changes between v4.0.0-beta1 and v4.0.0-rc1

Improvements

• IBX-1130: add language argument to translatable fields (#106)
• IBX-1589: Renamed Extension ezplatform_graphql to ibexa_graphql (#8)
• IBX-1334: Rebranded ibexa/graphql to use new namespaces
• IBX-1334: Cleanup rebranded ibexa/graphql code (#10)

Bugs

• IBX-1520: Fixed loading sub-items on PHP8 (#114)
• IBX-1604: Fixed deprecation warning related to PHP8 (#11)
• IBX-1604: Fixed deprecation warning related to PHP8 (#11) (#118)
• IBX-1565: Refactor schema's types' names validation (#116) (#14)