[PBDE-217] Update Sonarqube Image
Three changes here:
- The base Sonarqube image in the Dockerfile was updated to use the Iron Bank's SQ 8.5 Community Edition image. A new image built from the updated Dockerfile was pushed to this repo's container registry
- The Sonarqube deployment manifest was updated to use this new container image
- The images field of deployment/manifests/kustomization.yaml was removed, since in this case it seems to be more confusing than beneficial. (If it was there to conform to a pattern we're using across the apps/packages, I can add it back).
I've tested these changes in Party Bus Unclass (https://repo1.dsop.io/platform-one/private/big-bang/t-rex-bootstrap/-/tree/dev-pbde-217)