chore(deps): update dependency node-red-node-serialport to v2

Author: renovate[bot]

data/package.json

@@ -11,6 +11,6 @@
     },
     "dependencies": {
         "node-red-contrib-https": "~2.0.0",
-        "node-red-node-serialport": "~1.0.3"
+        "node-red-node-serialport": "~2.0.0"
     }
 }