Add test for "latest" Docker image tag
This PR fixes #726
The purpose is to test for "latest" image tag and if that's present in any form, which currently is the three most commonly used across different services, then mark the service as red.
This PR fixes #726
The purpose is to test for "latest" image tag and if that's present in any form, which currently is the three most commonly used across different services, then mark the service as red.