Standardize JDBC Connector Testing: Add JDBC string and property static tests

[noahkawasakigoogle]

Tell us about the problem you're trying to solve

No JDBC property/string tests for all JDBC connectors

Describe the solution you’d like

Just add tests that pass in a JsonNode config with some values and check that the correct properties and JDBC string is generated.

Describe the alternative you’ve considered or used

A clear and concise description of any alternative solutions or features you've considered or are using today.

Additional context

Add any other context or screenshots about the feature request here.

Are you willing to submit a PR?

Yes

[evantahler]

Closing, as this doesn't seem to be an in-progress issue