Unable to upgrade to @apollo/gateway 2.x while keeping Federation 1

[sgarg7]

Issue Description

I used rover to compose a supergraph schema from Federation 1, which is being hosted using apollo/gateway 2.x. According to the docs, apollo gateway should be able to upgrade without changing Federation 1 schema, but I run into errors when I start the gateway.

I created subgraphs to show this issue in the gist attached.

Link to Reproduction

https://gist.github.com/sgarg7/edbd1b4ef8e3b545226383bb563e3ef6

Reproduction Steps

1. Run npm install
2. Run node gateway.js and it will give the following error

~/test-schema/node_modules/@apollo/federation-internals/dist/extractSubgraphsFromSupergraph.js:201
            throw new Error(`${msg}.\n\nDetails:\n${errorToString(error)}`);
                  ^

Error: Error extracting subgraph "accounts" from the supergraph: this might be due to errors in subgraphs that were mistakenly ignored by federation 0.x versions but are rejected by federation 2.
Please try composing your subgraphs with federation 2: this should help precisely pinpoint the problems and, once fixed, generate a correct federation 2 supergraph.

Details:
[accounts] On type "User", for @key(fields: "id(format:\"uuid\")"): field User.id cannot be included because it has arguments (fields with argument are not allowed in @key)
    at extractSubgraphsFromSupergraph (~/test-schema/node_modules/@apollo/federation-internals/dist/extractSubgraphsFromSupergraph.js:201:19)
    at Supergraph.subgraphs (~/test-schema/node_modules/@apollo/federation-internals/dist/supergraphs.js:137:107)
    at buildFederatedQueryGraph (~/test-schema/node_modules/@apollo/query-graphs/dist/querygraph.js:259:34)
    at new QueryPlanner (~/test-schema/node_modules/@apollo/query-planner/dist/buildPlan.js:1785:80)
    at ApolloGateway.updateWithSchemaAndNotify (~/test-schema/node_modules/@apollo/gateway/dist/index.js:436:29)
    at ApolloGateway.updateWithSupergraphSdl (~/test-schema/node_modules/@apollo/gateway/dist/index.js:416:18)
    at ApolloGateway.externalSupergraphUpdateCallback (~/test-schema/node_modules/@apollo/gateway/dist/index.js:366:18)
    at ApolloGateway.initializeSupergraphManager (~/test-schema/node_modules/@apollo/gateway/dist/index.js:338:18)
    at async ApolloGateway.load (~/test-schema/node_modules/@apollo/gateway/dist/index.js:244:13)
    at async SchemaManager.start (~/test-schema/node_modules/@apollo/server/dist/cjs/utils/schemaManager.js:37:28)

Node.js v20.14.0