v8.3.0

What’s Changed

This release updates the framework to use a new major version of the federation library: federation-graphql-java-support to 4.4.0(https://github.com/apollographql/federation-jvm/releases/tag/v4.4.0) from the previous 3.0.0.
There are changes to how the federated-tracing context is set up since deprecated API support for this is now dropped in the library. Besides this change, this release should be backwards compatible for DGS users. Please refer to their release notes for more details.

• Update to latest federation-graphql-java-support lib 4.4.0. (#1813) @srinivasankavitha
• Make all timer threads daemonic in subscription handlers (#1811) @kilink
• Remove kotlinx-coroutines-jdk8 dependency (#1807) @kilink
• fix: cancel timer thread after websocket connection init task runs (#1808) @mikefischetti