Bump mqtt from 4.3.7 to 5.14.1

Bumps [mqtt](https://github.com/mqttjs/MQTT.js) from 4.3.7 to 5.14.1.
- [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...v5.14.1)

---
updated-dependencies:
- dependency-name: mqtt
  dependency-version: 5.14.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -61,7 +61,7 @@
         "mime": "3.0.0",
         "moment": "2.29.4",
         "moment-timezone": "0.5.34",
-        "mqtt": "4.3.7",
+        "mqtt": "5.14.1",
         "multer": "1.4.5-lts.1",
         "mustache": "4.2.0",
         "node-red-admin": "^3.0.0",