fix: upgrade body-parser from 1.14.2 to 1.20.0 (#916)

Snyk has created this PR to upgrade body-parser from 1.14.2 to 1.20.0.

See this package in npm:
https://www.npmjs.com/package/body-parser

See this project in Snyk:
https://app.snyk.io/org/dceejay/project/34c4615a-e656-449f-b5c4-62c59a9902ce?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

hardware/wemo/package.json

@@ -34,7 +34,7 @@
     "util": "~0.10.3",
     "url": "~0.11.0",
     "ip": "~1.0.1",
-    "body-parser": "~1.14.1",
+    "body-parser": "~1.20.0",
     "q": "~1.4.1"
   },
   "node-red": {