Implement ＠defer "June 2023" response format

[BoD]

Implements the latest (as of 2024-12-17) ＠defer incremental response format as seen in examples and spec edits.

This shouldn't be merged as-is, as at least the end-to-end tests with the Router will fail.

There may be a way to have both the "old" (20220824) and latest formats working but not sure this would be useful.

[svc-apollo-docs]

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Configuration

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    "apollographql/apollo-kotlin@main": {
      "remote": {
        "owner": "apollographql",
        "repo": "apollo-kotlin",
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Name	Link
Commit	e2da85981d4735fb33f48f5cb75e01db33ee1b62
Preview	https://www.apollographql.com/docs/deploy-preview/1919dfd3b4a18c13cba2
Build ID	1919dfd3b4a18c13cba2
File Changes	0 new, 1 changed, 0 removed * (developer-tools)/kotlin/(latest)/caching/declarative-ids.mdx
Pages	1

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[apollo-librarian[bot]]

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* (developer-tools)/kotlin/v5/fetching/defer.mdx
* (developer-tools)/kotlin/v5/migration/5.0.mdx

Build ID: 911dc892bc63c26d9ec34dd6 Build Logs: View logs

URL: https://www.apollographql.com/docs/deploy-preview/911dc892bc63c26d9ec34dd6

[martinbonnin]

Apollo Client 4 introduces different handlers for different incremental formats. We could do the same while the format iterates.

[BoD]

I think we're all good now.