Updates Clair Container scanning GitLab CI configuration

doc/ci/examples/container_scanning.md

@@ -23,7 +23,7 @@ sast:container:
     - docker:stable-dind
   script:
     - docker run -d --name db arminc/clair-db:latest
-    - docker run -p 6060:6060 --link db:postgres -d --name clair arminc/clair-local-scan:v2.0.1
+    - docker run -p 6060:6060 --link db:postgres -d --name clair --restart on-failure arminc/clair-local-scan:v2.0.1
     - apk add -U wget ca-certificates
     - docker pull ${CI_APPLICATION_REPOSITORY}:${CI_APPLICATION_TAG}
     - wget https://github.com/arminc/clair-scanner/releases/download/v8/clair-scanner_linux_amd64