Update JSONAPI dependency.
Require Swift 6.0+

See the new example test case for details.

In short, document.storedPrimaryResource() for single resource documents and document.storedPrimaryResources() for many resource documents will access the document's primary resource(s) as StoredResources. This means it is faster and more convenient to treat the response document as a coherent unit of primary resources with their related includes directly accessible.

Note that JSONAPI v5 introduced breaking changes to relationship types. See the release notes for details.

The short version of the story is that all things that are generic of the type of relationship being described gain an additional type parameter that specifies the type of metadata inside the Resource Identifier Object. This is named the IdMetaType and it is a JSONAPI.Meta just like any other metadata.

Platform minimums inherited by dependance on JSONAPI are now explicit in this package's manifest.