Update endpoint to Configure Connector after creation

[Kelsey-Ethyca]

Frontend work found in #1204

USER STORY

As an admin, I want to a be able to update a connector after creation.

DETAILS

Today there are 2 separate endpoints to save 1. the name and other config 2. the secrets

See PATCH /api/v1/connection and PUT /api/v1/connection/{connection_key}/secret

We will likely need to update the second endpoint to a patch

AC

• when a user clicks save in the connector configuration update the originally saved data

DESIGNS

User Flow: https://www.figma.com/file/4qgQpYc1bX4dXg2PHmRORL/DSR-Error-Handling?node-id=88%3A4993

Final Screens: https://www.figma.com/file/MTbZohIGvB4bq2f2wkiDHO/Fidesops-Management-UI?node-id=4006%3A60640

Extra Info

Epic Requirements Doc