Update graphql lib version

[Oxyaction]

Starting from ^2.0.0 version ApolloGateway uses graphql ^16.0.0 version as a dependency.
It produces a version conflict error since federation-subscription-tools still using graphql version 15.

Error: Cannot use GraphQLInputObjectType "{ ...schema }" from another module or realm.

Ensure that there is only one instance of "graphql" in the node_modules
directory. If different versions of "graphql" are the dependencies of other
relied on modules, use "resolutions" to ensure only one version is installed.

Can you update the dependency?

[paulbijancoch]

or could we do it by ourselves?

[alexandra-c]

Hello,
You can check out my implementation here https://www.npmjs.com/package/@totalsoft/federation-subscription-tools
I forked @Oxyaction 's also forked repo (😁), upgraded almost everything that needed upgrade to make it work with GraphQL v16 and Apollo Federation v2.
Enjoy!

PS: I'm still waiting and hoping Apollo guys will soon integrate subscription into Apollo Federation 2 and support them natively 🙏.