Python: Update test_import_star.py

Co-authored-by: Rasmus Wriedt Larsen <rasmuswriedtlarsen@gmail.com>

Author: tausbn

python/ql/test/experimental/dataflow/ApiGraphs/test_import_star.py

@@ -33,3 +33,4 @@ def func3():
     var2 = print #$ use=moduleImport("builtins").getMember("print")
     def func4():
         var2() #$ MISSING: use=moduleImport("builtins").getMember("print").getReturn()
+    func4()