Skip test on Python 3.6

Author: alexander-alderman-webb

tests/test_shadowed_module.py

@@ -45,6 +45,9 @@ def find_unrecognized_dependencies(tree):
     return unrecognized_dependencies
 
 
+@pytest.mark.skipif(
+    sys.version_info < (3, 7), reason="asyncpg imports __future__.annotations"
+)
 def test_shadowed_modules_when_importing_integrations(sentry_init):
     """
     Check that importing integrations for third-party module raises an