Merge branch 'migrate_ntp_luxembourg' into 'master'

[luxembourg] Change ntp site from srv-data to pve-1

See merge request !820

data/grid5000/sites/luxembourg/servers/pve-1.json

 {
   "alias": [
     "adminfront",
-    "af"
+    "af",
+    "ntp"
   ],
   "kind": "physical",
   "network_adapters": {

data/grid5000/sites/luxembourg/servers/srv-data.json

@@ -3,7 +3,6 @@
     "nfs",
     "home-g5k",
     "public",
-    "ntp",
     "storage1",
     "modules"
   ],

input/grid5000/sites/luxembourg/servers/physical.yaml

 ---
 srv-data:
   kind: physical
-  alias: [nfs, home-g5k, public, ntp, storage1, modules]
+  alias: [nfs, home-g5k, public, storage1, modules]
   warranty: 2024-02
   serial: 4HDKFV2
   network_adapters:
@@ -39,7 +39,7 @@ petitprince-cmc:
 
 pve-1:
   kind: physical
-  alias: [adminfront, af]
+  alias: [adminfront, af, ntp]
   warranty: 2025-12-18
   serial: 3Q4TD93
   network_adapters: