feat: spiders use uvloop/winloop when available

Author: D4Vinci

scrapling/spiders/spider.py

@@ -203,4 +203,7 @@ def start(self, backend_options: Dict[str, Any] | None = None) -> CrawlResult:
 
         :param backend_options: Asyncio backend options to be used with `anyio.run`
         """
+        backend_options = backend_options or {}
+        # By default use the faster uvloop/winloop event loop implementation, if available
+        backend_options.update({"use_uvloop": True})
         return anyio.run(self.__run, backend="asyncio", backend_options=backend_options)