Bump ws from 7.3.1 to 7.4.6 in /server

Bumps [ws](https://github.com/websockets/ws) from 7.3.1 to 7.4.6.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](https://github.com/websockets/ws/compare/7.3.1...7.4.6)

Signed-off-by: dependabot[bot] <support@github.com>

server/package-lock.json

@@ -15,9 +15,9 @@
       "integrity": "sha512-uNX6jVFjBXfZtsc7B8jVPJ3QdfCF/Sjde4gxsy3rNQmHuWGFarnU7IFGdxZKJ4h4uRjANQc6rG7GiGolRW9fgA=="
     },
     "ws": {
-      "version": "7.3.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.3.1.tgz",
-      "integrity": "sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA=="
+      "version": "7.4.6",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
+      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A=="
     }
   }
 }

server/package.json

@@ -11,6 +11,6 @@
   "dependencies": {
     "ua-parser-js": "^0.7.21",
     "unique-names-generator": "^4.3.0",
-    "ws": "^7.3.1"
+    "ws": "^7.4.6"
   }
 }