[rennes][abacus26] Add warranty and manufacturing date

input/grid5000/sites/rennes/clusters/abacus26/abacus26.yaml

 ---
 model: HPE ProLiant DL380 Gen11
-created_at: 1970-01-01 # TODO: change this value
+created_at: 1970-01-01 # TODO: change this e
 kavlan: false
 boot_type: uefi
 exotic: false
@@ -10,8 +10,8 @@ queues:
 nodes:
   abacus26-[1-1]:
     chassis:
-      manufactured_at: 1970-01-01 # TODO: Put date.
-      warranty_end: 1970-01-01 # TODO: Put date.
+      manufactured_at: 2024-10-08 
+      warranty_end: 2031-10-14 
     supported_job_types:
       deploy: true
       besteffort: true