[econome] Update BIOS and BMC on econome-1,2 (temporarily breaks cluster homogeneity)

data/grid5000/sites/nantes/clusters/econome/nodes/econome-1.json

@@ -7,11 +7,11 @@
     "platform_type": "x86_64"
   },
   "bios": {
-    "release_date": "10/07/2014",
+    "release_date": "7/08/2019",
     "vendor": "Dell Inc.",
-    "version": "2.5.3"
+    "version": "2.5.7"
   },
-  "bmc_version": "1.24",
+  "bmc_version": "2.53",
   "chassis": {
     "manufacturer": "Dell Inc.",
     "name": "PowerEdge C6220",

data/grid5000/sites/nantes/clusters/econome/nodes/econome-2.json

@@ -7,11 +7,11 @@
     "platform_type": "x86_64"
   },
   "bios": {
-    "release_date": "10/07/2014",
+    "release_date": "7/08/2019",
     "vendor": "Dell Inc.",
-    "version": "2.5.3"
+    "version": "2.5.7"
   },
-  "bmc_version": "1.24",
+  "bmc_version": "2.53",
   "chassis": {
     "manufacturer": "Dell Inc.",
     "name": "PowerEdge C6220",

input/grid5000/sites/nantes/clusters/econome/nodes/econome-1.yaml

@@ -8,10 +8,10 @@ econome-1:
     nb_threads: 32
     platform_type: x86_64
   bios:
-    release_date: 10/07/2014
+    release_date: 7/08/2019
     vendor: Dell Inc.
-    version: 2.5.3
-  bmc_version: '1.24'
+    version: 2.5.7
+  bmc_version: '2.53'
   chassis:
     manufacturer: Dell Inc.
     name: PowerEdge C6220

input/grid5000/sites/nantes/clusters/econome/nodes/econome-2.yaml

@@ -8,10 +8,10 @@ econome-2:
     nb_threads: 32
     platform_type: x86_64
   bios:
-    release_date: 10/07/2014
+    release_date: 7/08/2019
     vendor: Dell Inc.
-    version: 2.5.3
-  bmc_version: '1.24'
+    version: 2.5.7
+  bmc_version: '2.53'
   chassis:
     manufacturer: Dell Inc.
     name: PowerEdge C6220