[grostiti] put cluster in production queue

data/grid5000/sites/nancy/clusters/grostiti/nodes/grostiti-1.json

@@ -517,10 +517,10 @@
   "supported_job_types": {
     "besteffort": true,
     "deploy": true,
-    "max_walltime": 0,
+    "max_walltime": 604800,
     "queues": [
       "admin",
-      "testing"
+      "production"
     ],
     "virtual": "ivt"
   },