[PBDE-153] Update Sonarqube Image

Three changes here:

1. 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
2. The Sonarqube deployment manifest was updated to use this new container image
3. 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-153) PB Jira Ticket: https://jira.il2.dsop.io/browse/PBDE-153