Fix inconsistent SaaS connector tests

[galvana]

Bug Description

The erasure data scripts for some of the SaaS connectors do not produce reliable data. We are using a pattern where we wait until data is available but it's likely that some SaaS providers have multiple servers processing our requests. This means that even if one server returns the data we expect, it might not have propagated to every server.

Acceptance Criteria

• Connectors pass every time
• Standardize test names
• Add connection test for each SaaS connector