ref(client): remove wrongful indent

GH-4601

Author: srothh

sentry_sdk/client.py

@@ -991,7 +991,7 @@ def flush(  # type: ignore[override]
             if self.log_batcher is not None:
                 self.log_batcher.flush()
 
-                self.transport.flush(timeout=timeout, callback=callback)
+            self.transport.flush(timeout=timeout, callback=callback)
         return None
 
     async def _flush_async(