Bump engine.io and socket.io in /Matchmaker (#72)

Bumps [engine.io](https://github.com/socketio/engine.io) to 6.4.0 and updates ancestor dependency [socket.io](https://github.com/socketio/socket.io). These dependencies need to be updated together.


Updates `engine.io` from 6.1.3 to 6.4.0
- [Release notes](https://github.com/socketio/engine.io/releases)
- [Changelog](https://github.com/socketio/engine.io/blob/main/CHANGELOG.md)
- [Commits](socketio/engine.io@6.1.3...6.4.0)

Updates `socket.io` from 4.4.1 to 4.6.0
- [Release notes](https://github.com/socketio/socket.io/releases)
- [Changelog](https://github.com/socketio/socket.io/blob/main/CHANGELOG.md)
- [Commits](socketio/socket.io@4.4.1...4.6.0)

---
updated-dependencies:
- dependency-name: engine.io
  dependency-type: indirect
- dependency-name: socket.io
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Matchmaker/package.json

@@ -5,7 +5,7 @@
   "dependencies": {
     "cors": "^2.8.5",
     "express": "^4.18.2",
-    "socket.io": "4.4.1",
+    "socket.io": "4.6.0",
     "yargs": "17.3.1"
   }
 }