docs: Extend type description of useQuery's onSuccess (TanStack#2836)

Author: bennettdams

src/core/types.ts

@@ -165,7 +165,7 @@ export interface QueryObserverOptions<
    */
   notifyOnChangePropsExclusions?: Array<keyof InfiniteQueryObserverResult>
   /**
-   * This callback will fire any time the query successfully fetches new data.
+   * This callback will fire any time the query successfully fetches new data or the cache is updated via `setQueryData`.
    */
   onSuccess?: (data: TData) => void
   /**