Update the query_hash for post downloads (#1026)

- It's necessary because for the old query_hash IG isn't returning the full structure any more.
- So the old query_hash is replaced with the current one.

instaloader/structures.py

@@ -835,7 +835,7 @@ class Profile:
         self._obtain_metadata()
         return NodeIterator(
             self._context,
-            '472f257a40c653c64c666ce877d59d2b',
+            '003056d32c2554def87228bc3fd9668a',
             lambda d: d['data']['user']['edge_owner_to_timeline_media'],
             lambda n: Post(self._context, n, self),
             {'id': self.userid},