[rennes] pve-1 is now adminfront and ntp site

data/grid5000/sites/rennes/servers/parasilo-srv-1.json

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

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

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

data/grid5000/sites/rennes/servers/srv.json

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

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

 ---
 srv:
   kind: physical
-  alias:
-    - adminfront
-    - af
+  alias: []
   warranty: 2018-09
   serial: CLXJZY1
   network_adapters:
@@ -114,8 +112,7 @@ cargo3:
 
 parasilo-srv-1:
   kind: physical
-  alias:
-    - ntp
+  alias: []
   warranty: 2022-01
   serial: H8RGG42
   network_adapters:
@@ -148,7 +145,10 @@ parasilo-srv-3:
 
 pve-1:
   kind: physical
-  alias: []
+  alias:
+    - adminfront
+    - af
+    - ntp
   warranty: 2030-15
   serial: CZJ3151FJV
   network_adapters: