Update usage-schema.md example

[hos]

Description

The documentation was using deprecated interfaces. With this update

1. It uses new hookArgs, where you can pass resolvedPreset, requestContext with the args.
2. It uses TypedDocumentNode from @graphql-typed-document-node/core, to support fully typed queries when using graphql-codegen's client-preset.

Note:

The return type of execute function is PromiseOrValue<ExecutionResult | AsyncGenerator<AsyncExecutionResult, void, undefined>>, but I didn't found AsyncExecutionResult so the type in the current example supports only ExecutionResult.

Performance impact

Security impact

Checklist

• My code matches the project's code style and yarn lint:fix passes.
• I've added tests for the new feature, and yarn test passes.
• I have detailed the new feature in the relevant documentation.
• I have added this feature to 'Pending' in the RELEASE_NOTES.md file (if one exists).
• If this is a breaking change I've explained why.

[benjie]

Thanks! I extracted the refactor from makeSchema() to postgraphile() into #2275, and then re-implemented the TypedDocumentNode example via a separate PR #2277 - let me know what you think!