SaaS connector tests need updated reference to core config

[galvana]

Bug Description

The way to call the core config changed after moving from fidesops to fides. Some tests got the change but the SaaS connector task tests still need the fix. The way to call the core config needs to be changed to:

from fides.ctl.core.config import get_config

CONFIG = get_config()
...
CONFIG.execution.masking_strict = False

Steps to Reproduce

1. Run any of the SaaS connector task tests that make a reference to config