[feature request] Add Tanstack-Query v5 Support

Tanstack query has had a major version upgrade from v4 to v5 and there are some interesting benefits of having v5.

The migration guide to migrate from v4 to v5 can be found here: [migrating-to-v5](https://tanstack.com/query/v5/docs/framework/react/guides/migrating-to-v5)

I'd love to add the feature myself, but i dont have any experience with typescript code generation. The changes itself shouldnt be too hard and if someone wants to implement it or give me a little hint or example on where to start, then please!

Start with the TanStack Query v4-to-v5 migration guide and locate the TypeScript code-generation paths that produce React Query support. Determine the generated API changes required for v5, then verify that the generated TypeScript classes support the new version without regressing existing v4 behavior.

Vom Indexierungsmodell aus dem Issue-Text verfasst.