Address PR feedback

Author: crokita

package-lock.json

@@ -4,7 +4,7 @@
   "description": "The official JavaScript SDK for SmartDeviceLink.",
   "main": "/lib/js/dist/SDL.js",
   "engines": {
-    "node": ">= 9.11.2"
+    "node": ">= 10.24.1"
   },
   "directories": {
     "example": "examples",
@@ -53,6 +53,7 @@
     "rollup-plugin-commonjs": "^10.1.0",
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-terser": "^7.0.2",
-    "sinon": "^9.2.4"
+    "sinon": "^9.2.4",
+    "ws": "^8.8.1"
   }
 }