[rennes][abacus26] Update disk PCI path

data/grid5000/sites/rennes/clusters/abacus26/nodes/abacus26-1.json

@@ -105,7 +105,7 @@
   "storage_devices": [
     {
       "by_id": "",
-      "by_path": "/dev/disk/by-path/dummy",
+      "by_path": "/dev/disk/by-path/pci-0000:e1:00.0-nvme-1",
       "id": "disk0",
       "interface": "SAS",
       "model": "unknown",

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

@@ -32,7 +32,7 @@ nodes:
       disk0: # This field will have to be renamed later.
         id: disk0
         interface: SAS
-        by_path: "/dev/disk/by-path/dummy" # this path will have to change later.
+        by_path: "/dev/disk/by-path/pci-0000:e1:00.0-nvme-1"
     software:
       standard-environment: debian11-x64-std # TODO: check that architecture is OK
     management_tools: