Add env

Author: mquinzin

.github/workflows/developer_ci.yml

@@ -20,7 +20,7 @@ jobs:
     # runs-on: developer_ci   
     runs-on: ["dev_pmci","fr-shady"]
     container: 
-      image: "${DOCKER_REGISTRY}/common-linux64"
+      image: "${{ env.DOCKER_REGISTRY }}/common-linux64"
       credentials: 
         username: ${{ secrets.DOCKER_REGISTRY_USER }}
         password: ${{ secrets.DOCKER_REGISTRY_PASSWD }}