[Automation] Add Coverage Report For Tests

Now that we have some automation in place, it would be good to identify how we can test our code samples/n1ql queries against internal builds of Couchbase Server.

Currently our automation tests run the risk of failing more regularly if this is not addressed, we would need to be able to access docker builds such as this:`build-docker.couchbase.com:443/couchbase/server-internal:7.0.0-4960` possibly with some doc-team credentials.