Chore: Fix imports after package migration

Author: amotl

tests/__init__.py

@@ -2,7 +2,7 @@
 
 from sqlalchemy_cratedb.compat.api13 import monkeypatch_amend_select_sa14, monkeypatch_add_connectionfairy_driver_connection
 from sqlalchemy_cratedb.sa_version import SA_1_4, SA_VERSION
-from crate.client.test_util import ParametrizedTestCase
+from .util import ParametrizedTestCase
 
 # `sql.select()` of SQLAlchemy 1.3 uses old calling semantics,
 # but the test cases already need the modern ones.

tests/compiler_test.py

@@ -38,7 +38,7 @@
     from sqlalchemy.ext.declarative import declarative_base
 
 from sqlalchemy_cratedb import SA_VERSION, SA_1_4, SA_2_0, ObjectType
-from crate.client.test_util import ParametrizedTestCase
+from .util import ParametrizedTestCase