Fix to use os.fsync

pytablereader/factory/_url.py

@@ -206,7 +206,7 @@ def _fetch_source(self, loader_class):
             with open(self._source, "wb") as f:
                 f.write(r.content)
                 f.flush()
-                os.fdatasync(f.fileno())
+                os.fsync(f.fileno())
 
             atexit.register(remove_temp_file, dir_path=self.__temp_dir_path, file_path=self._source)