[ubuntu] Add lerna (#2763)

* Add lerna to linux images

* Add a comment about netlify-cli

* remove Node.js tests from Tools.Tests.ps1

* fix tabs

* revert empty lines

* fix code style

images/linux/toolsets/toolset-2004.json

@@ -259,5 +259,51 @@
     },
     "rubygems": [
         {"name": "fastlane"}
+    ],
+    "node_modules": [
+        {
+            "name": "grunt",
+            "command": "grunt"
+        },
+        {
+            "name": "gulp",
+            "command": "gulp"
+        },
+        {
+            "name": "n",
+            "command": "n"
+        },
+        {
+            "name": "parcel-bundler",
+            "command": "parcel"
+        },
+        {
+            "name": "typescript",
+            "command": "tsc"
+        },
+        {
+            "name": "newman",
+            "command": "newman"
+        },
+        {
+            "name": "vercel",
+            "command": "vercel"
+        },
+        {
+            "name": "webpack",
+            "command": "webpack"
+        },
+        {
+            "name": "webpack-cli",
+            "command": "webpack-cli"
+        },
+        {
+            "name": "netlify-cli",
+            "command": "netlify"
+        },
+        {
+            "name": "lerna",
+            "command": "lerna"
+        }
     ]
 }