[luxembourg/petitprince] Update Bios to 2.9 on petitprince-3

data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-3.json

@@ -7,10 +7,10 @@
     "platform_type": "x86_64"
   },
   "bios": {
-    "release_date": "07/16/2019",
+    "release_date": "01/08/2020",
     "sriov": true,
     "vendor": "Dell Inc.",
-    "version": "2.8.0"
+    "version": "2.9.0"
   },
   "bmc_version": "2.63.60.62",
   "chassis": {