dio 5.10.0

What's new

• Fix FormData.readAsBytes excessive memory usage with large payloads by replacing the O(n²) reduce+spread approach with a pre-allocated Uint8List.
• Fix request hanging indefinitely when async interceptor callbacks throw without calling the handler.
• Fix HttpException: Connection closed before full header was received being reported as DioExceptionType.unknown.
• Add transformTimeout to bound long-running response transformations, including background JSON decoding.
  On web, timeout handling is best-effort because synchronous JavaScript work cannot be preempted.
• Fix FormData.clone() dropping boundaryName and camelCaseContentDisposition, so a retried multipart request now keeps the original options instead of silently falling back to the defaults.
• Fix QueuedInterceptor stalling its queue forever when the active request is cancelled while its callback is still pending (never calls next/resolve/reject), which blocked every subsequent request routed through the interceptor.
• Fix ErrorInterceptorHandler.reject(..., true) not continuing to following error interceptors in queued interceptors.