Bump ws from 7.5.3 to 8.4.0

Bumps [ws](https://github.com/websockets/ws) from 7.5.3 to 8.4.0.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@7.5.3...8.4.0)

---
updated-dependencies:
- dependency-name: ws
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -21,7 +21,7 @@
     "nyc": "^15.0.0",
     "request": "^2.87.0",
     "request-promise-native": "^1.0.4",
-    "ws": "^7.0.0"
+    "ws": "^8.4.0"
   },
   "engines": {
     "node": ">= 10.0"