build(deps): bump mqtt from 5.0.2 to 5.0.3 (#1030)

Bumps [mqtt](https://github.com/mqttjs/MQTT.js) from 5.0.2 to 5.0.3.
- [Release notes](https://github.com/mqttjs/MQTT.js/releases)
- [Changelog](https://github.com/mqttjs/MQTT.js/blob/main/CHANGELOG.md)
- [Commits](mqttjs/MQTT.js@v5.0.2...v5.0.3)

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

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

package.json

@@ -44,7 +44,7 @@
     "got": "^11.8.6",
     "http-z": "^6.1.2",
     "jws": "^4.0.0",
-    "mqtt": "^5.0.2",
+    "mqtt": "^5.0.3",
     "node-forge": "^1.3.1",
     "pg": "^8.11.2",
     "rc": "^1.2.8",