Reminder to switch to the DGS Spring GraphQL starter

[paulbakker]

This is a reminder that in a few weeks, we'll swap the DGS starter to use our Spring GraphQL integration by default.
https://netflix.github.io/dgs/spring-graphql-integration

Please manually switch to the new starter now so that you won't run into surprises! The legacy code will be removed before the end of the year.

As described in the docs, in the majority of cases there won't be changes required. File uploads are the exception (see section of the linked docs).