Make client Python 3.10 compatible

This PR removes the `collections.Iterable` class which was removed from Python 3.10.

Adding new unit test to v1 client; run tests using Python 3.10 everything seems fine

Author: NiallEgan

cmdexec/clients/python/src/databricks/sql/utils.py

@@ -1,4 +1,5 @@
-from collections import namedtuple, OrderedDict, Iterable
+from collections import namedtuple, OrderedDict
+from collections.abc import Iterable
 import datetime
 from enum import Enum