Federation 2.6 support

[RoKKim]

Currently, when using "https://specs.apollo.dev/federation/v2.6" and calling com.apollographql.federation.graphqljava.directives.LinkDirectiveProcessor#loadFederationImportedDefinitions, the following exception is returned:

com.apollographql.federation.graphqljava.exceptions.UnsupportedFederationVersionException: Specified federation spec = https://specs.apollo.dev/federation/v2.6 is currently not supported

Are there any plans to add support for Federation 2.6?

[Carmelo Scollo]

Apparently they added it with today's release 4.4.0: https://github.com/apollographql/federation-jvm/releases/tag/v4.4.0