Bump mqtt from 4.3.7 to 5.0.4

Bumps [mqtt](https://github.com/mqttjs/MQTT.js) from 4.3.7 to 5.0.4.
- [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...v5.0.4)

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

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

package.json

@@ -25,7 +25,7 @@
     "@alcalzone/release-script-plugin-license": "^3.5.9",
     "@iobroker/legacy-testing": "^0.3.7",
     "axios": "^1.4.0",
-    "mqtt": "^4.3.7",
+    "mqtt": "^5.0.4",
     "gulp": "^4.0.2",
     "mocha": "^10.2.0",
     "chai": "^4.3.7"