chore(ci): improve logs for test.conformance

[programmer04]

What this PR does / why we need it:

In logs for make test.conformance the below entry is presented as one line

INFO: deploying Kong RBACs to clusterINFO: deploying Kong knative RBACs to clusterINFO: deploying Kong gateway RBACs to clusterINFO: deploying Kong CRDs RBACs to clusterINFO: deploying Kong CRDs to clusterINFO: deploying Gateway CRDs to cluster    gateway_conformance_test.go:127: creating GatewayClass for gateway conformance tests

change in this PR breaks it in separate lines

INFO: deploying Kong RBACs to cluster
INFO: deploying Kong knative RBACs to cluster
INFO: deploying Kong gateway RBACs to cluster
INFO: deploying Kong CRDs RBACs to cluster
INFO: deploying Kong CRDs to cluster
INFO: deploying Gateway CRDs to cluster

Special notes for your reviewer:

Something to consider is to get rid of bare fmt.Printf in test helpers and use a preconfigured logger for this use-case. maybe something to investigate during loggers clean-up proposed in #1893.