Bump mqtt from 4.3.1 to 4.3.2 (#402)

Bumps [mqtt](https://github.com/mqttjs/MQTT.js) from 4.3.1 to 4.3.2.
- [Release notes](https://github.com/mqttjs/MQTT.js/releases)
- [Changelog](https://github.com/mqttjs/MQTT.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mqttjs/MQTT.js/commits)

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

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

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

Author: dependabot[bot]

package-lock.json

@@ -37,6 +37,6 @@
     },
     "dependencies": {
         "nodecg-io-core": "^0.3.0",
-        "mqtt": "^4.3.1"
+        "mqtt": "^4.3.2"
     }
 }