waiverdb: Update command for the new container image

roles/openshift-apps/waiverdb/templates/deploymentconfig.yml

@@ -1,4 +1,4 @@
-
+---
 apiVersion: v1
 kind: DeploymentConfig
 metadata:
@@ -18,7 +18,14 @@ spec:
         failurePolicy: Abort
         execNewPod:
           containerName: web
-          command: [ /bin/sh, -i, -c, "waiverdb wait-for-db && waiverdb db upgrade" ]
+          command:
+            - /bin/sh
+            - -c
+            - >-
+              if [ -f /app/entrypoint.sh ];
+              then /app/entrypoint.sh waiverdb db upgrade;
+              else waiverdb db upgrade;
+              fi
           volumes:
           - config-volume
           - secret-volume