Update ECS version in approved files.

Author: jalvz

tests/system/error.approved.json

@@ -9,7 +9,7 @@
                 "us": 1494342245000000
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -101,7 +101,7 @@
                 "us": 1494342245999999
             },
             "ecs":{
-                "version": "1.1.0"
+                "version":"1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -419,7 +419,7 @@
                 "us": 1494342245000000
             },
             "ecs":{
-                "version": "1.1.0"
+                "version":"1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -512,7 +512,7 @@
                 "us": 1494342245999000
             },
             "ecs":{
-                "version": "1.1.0"
+                "version":"1.2.0"
             },
             "observer": {
                 "type": "apm-server",

tests/system/spans.approved.json

@@ -9,7 +9,7 @@
                 "us": 1496170407154000
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -83,7 +83,7 @@
                 "us": 1496170422281000
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -165,7 +165,7 @@
                 "us": 1496170407154000
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -237,7 +237,7 @@
                 "us": 1496170407154000
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -368,7 +368,7 @@
                 "us": 1496170407154000
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",

tests/system/transaction.approved.json

@@ -9,7 +9,7 @@
                 "us": 1496170407154000
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -209,7 +209,7 @@
                 "us": 1496170422281999
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -307,7 +307,7 @@
                 "us": 1496170422000000
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",
@@ -404,7 +404,7 @@
                 "us": 1496170422281000
             },
             "ecs": {
-                "version": "1.1.0"
+                "version": "1.2.0"
             },
             "observer": {
                 "type": "apm-server",