Fix image path in db-deployment.yaml
Fix image path in db-deployment.yaml

Substitute in $PROJECT_ID and use the correct image name, "db_server".

google/trillian,gdbelvin/trillian,daviddrysdale/trillian,daviddrysdale/trillian,RJPercival/trillian,google/trillian,RJPercival/trillian,Martin2112/trillian,gdbelvin/trillian,AlCutter/trillian,AlCutter/trillian,gdbelvin/trillian,daviddrysdale/trillian,Martin2112/trillian,Martin2112/trillian