Reenable dummy application.properties in tac warning docker image
The dummy application.properties needs to be included in the docker image, otherwise docker-compose in development or ci doesn't correctly starts (with message such as "[fr.gouv.tacw.ws.TacWarningWsRestApplication]; nested exception is java.io.FileNotFoundException: class path resource [application.properties] cannot be opened because it does not exist
")
apparently, it acts as a kind of placeholder when doing the
volumes:
- ${PWD}/robert-warning-ws-rest-config:/work/config
in the docker-compose.yaml