feat(router): add support for @requires in grpc#2610

Noroth merged 15 commits intomainwundergraph/cosmo:mainfrom

ludwig/eng-9128-update-demo-schema-and-tests-with-required-fields-in-cosmowundergraph/cosmo:ludwig/eng-9128-update-demo-schema-and-tests-with-required-fields-in-cosmoCopy head branch name to clipboard