Bump ws from 7.5.0 to 7.5.1 (#233)

Bumps [ws](https://github.com/websockets/ws) from 7.5.0 to 7.5.1.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@7.5.0...7.5.1)

---
updated-dependencies:
- dependency-name: ws
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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package.json

@@ -34,7 +34,7 @@
     "serve-favicon": "^2.4.3",
     "thingpedia": "^2.10.0-alpha.1",
     "uuid": "^8.3.1",
-    "ws": "^7.5.0"
+    "ws": "^7.5.1"
   },
   "optionalDependencies": {
     "canberra": "^0.1.2",