Update data.py

Author: JohannesLichtenberger

tests/data.py

@@ -4,8 +4,8 @@
     "baz": "hello",
     "tada": [{"foo": "bar"}, {"baz": False}, "boo", {}, []],
 }
-post_query = """let $nodeKey := sdb:nodekey(jn:doc('Query','query_resource1').foo[[2]])
+post_query = """let $nodeKey := sdb:nodekey(jn:doc('Query','query_resource1').foo[2])
 return $nodeKey"""
 
-resource_query = """let $nodeKey := sdb:nodekey($$.foo[[2]])
+resource_query = """let $nodeKey := sdb:nodekey($$.foo[2])
 return $nodeKey"""