run implementation based on graphql-java

this stopped working after bumping dgs from 3.2.0 to 3.9.3

./gradlew bootRun --args='--spring.profiles.active=graphql-java'

run implementation based on netflix DGS

./gradlew bootRun --args='--spring.profiles.active=netflix-dgs'

when using netflix DGS, there's a GUI under http://localhost:8080/graphiql

known limitations