chore(deps): bump mqtt from 4.3.7 to 5.3.4

Bumps [mqtt](https://github.com/mqttjs/MQTT.js) from 4.3.7 to 5.3.4.
- [Release notes](https://github.com/mqttjs/MQTT.js/releases)
- [Changelog](https://github.com/mqttjs/MQTT.js/blob/main/CHANGELOG.OLD.md)
- [Commits](mqttjs/MQTT.js@v4.3.7...v5.3.4)

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

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

package.json

@@ -128,7 +128,7 @@
     "mercurius": "13.1.0",
     "module-alias": "^2.2.3",
     "morgan": "^1.10.0",
-    "mqtt": "^4.3.7",
+    "mqtt": "^5.3.4",
     "nats": "^2.17.0",
     "nest-commander": "^3.12.0",
     "nest-commander-testing": "3.3.0",