Create Helm Tests for Loki

Using a combination of cypress and script tests check Loki and BigBang pipelines should make sure that Loki is healthy by checking Grafana's Explore tab, and curl the service for loki:3100 at endpoints /ready & /metrics to make sure that pod and configuration is completely healthy and alive.

Examples of available Loki API endpoints are here in there documentation

Similar to the tests within elasticsearch-kibana, create a dependencies.yaml file that references the monitoring package and a series of cypress related javascript configurations to check the Grafana UI for Loki logs/connections