[Atlas] Connecting to MTM clusters requires a minimum of Java 8 and Mongo Driver 3.6.3

Description

https://docs.atlas.mongodb.com/driver-connection/index.html#prerequisites

https://docs.mongodb.com/ecosystem/drivers/driver-compatibility-reference/

Currently our documentation charts show that you can connect using any version of Java that supports SNI, and a driver version of 3.4+

Per https://jira.mongodb.org/browse/JAVA-2817, to connect to any MTM cluster you must use at least Java 8 and Mongo Driver 3.6.3 to have the type of SNI support we expect.

Scope of changes

Impact to Other Docs

MVP (Work and Date)

Resources (Scope or Design Docs, Invision, etc.)