[Grenoble][Chartreuse2] Change walltime for chartreuse2

input/grid5000/sites/grenoble/clusters/chartreuse2/chartreuse2.yaml

@@ -8,11 +8,21 @@ queues:
   - admin
   - production
 nodes:
-  chartreuse2-[1-4]:
+  chartreuse2-1:
     supported_job_types:
       deploy: true
       besteffort: true
-      max_walltime: 0
+      max_walltime: 86400
+  chartreuse2-2:
+    supported_job_types:
+      deploy: true
+      besteffort: true
+      max_walltime: 172800
+  chartreuse2-[3-4]:
+    supported_job_types:
+      deploy: true
+      besteffort: true
+      max_walltime: 604800
     processor:
       microarchitecture: Broadwell 
       clock_speed: 2400000000