Add CI step to run future extension tests (#1214)

Signed-off-by: Sebastian Malton <sebastian@malton.name>

extensions/node-menu/Makefile

@@ -1,5 +1,8 @@
 install-deps:
-	npm install
+	yarn install
 
 build: install-deps
-	npm run build
+	yarn run build
+
+test:
+	yarn run test

extensions/node-menu/package.json

@@ -9,7 +9,8 @@
   },
   "scripts": {
     "build": "webpack --config webpack.config.js",
-    "dev": "npm run build --watch"
+    "dev": "npm run build --watch",
+    "test": "echo NO TESTS"
   },
   "dependencies": {},
   "devDependencies": {