fix: handle none data in _recursive_extract

Author: punndcoder28

pandas/io/json/_normalize.py

@@ -490,6 +490,8 @@ def _pull_records(js: dict[str, Any], spec: list | str) -> list:
     meta_keys = [sep.join(val) for val in _meta]
 
     def _recursive_extract(data, path, seen_meta, level: int = 0) -> None:
+        if data is None:
+            return
         if isinstance(data, dict):
             data = [data]
         if len(path) > 1: