Upgrade to Netflix GraphQL CodeGen 7.0.3

Closes gh-1162

Author: bclozel

platform/build.gradle

@@ -33,7 +33,7 @@ dependencies {
 		api("jakarta.persistence:jakarta.persistence-api:3.1.0")
 
 		api("com.apollographql.federation:federation-graphql-java-support:5.3.0")
-		api("com.netflix.graphql.dgs.codegen:graphql-dgs-codegen-shared-core:6.2.4")
+		api("com.netflix.graphql.dgs.codegen:graphql-dgs-codegen-shared-core:7.0.3")
 
 		api("com.google.code.findbugs:jsr305:3.0.2")