Test gqlgen update for compatibility

[StevenACoffman]

Hello, This is a WIP to see if the recent 99designs/gqlgen#2371 would fix the subgraph compatibility problem reported by 99designs/gqlgen#2357

Not sure how to run the full suite, but this is an attempt to trigger it.

[apollo-cla]

@StevenACoffman: Thank you for submitting a pull request! Before we can merge it, you'll need to sign the Apollo Contributor License Agreement here: https://contribute.apollographql.com/

[StevenACoffman]

@lleadbet @dariuszkuc I am looking for help on how to see the test failures here that caused the recent regression in #223 regarding Federation V1 compatibility for gqlgen.

[dariuszkuc]

Hello 👋

For repro:

1. uncomment @requires directive from schema.graphqls
2. start gateway + subgraphs locally (see CONTRIBUTING.md for details)
3. run following query against the gateway to observe the broken behavior

query {
  product(id: "apollo-federation") {
    createdBy {
      averageProductsCreatedPerYear
      email
    }
  }
}

OR run following against gqlgen server directly

query {
    _entities(representations: [{ "__typename": "User", "email": "support@apollographql.com" }]) {
        ...on User {
          averageProductsCreatedPerYear
          email
        }
      }
    }
}

[dariuszkuc]

You can see the compatibility test results under checks -> https://github.com/apollographql/apollo-federation-subgraph-compatibility/actions/runs/3063889683 (NOTE: @requires is currently commented out from the schema)

[dariuszkuc]

Closing this PR as it does not fix the underlying issue.