Bump ws from 8.18.0 to 8.21.1 (#312)

Bumps [ws](https://github.com/websockets/ws) from 8.18.0 to 8.21.1.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](https://github.com/websockets/ws/compare/8.18.0...8.21.1)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.21.1
  dependency-type: indirect
...

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package-lock.json

@@ -11015,7 +11015,9 @@
       }
     },
     "node_modules/ws": {
-      "version": "8.18.0",
+      "version": "8.21.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.21.1.tgz",
+      "integrity": "sha512-+0NTnW77fFN/DjQi6k/Sq/Yvk4Sgajw7urW8V+asjXnRgDs9gyGkdb7EzgfhA4goXsRIZKE28fzIXBHEzhuiWw==",
       "dev": true,
       "license": "MIT",
       "engines": {