Update paho-mqtt requirement from <2.0.0 to <3.0.0

Updates the requirements on [paho-mqtt](https://github.com/eclipse/paho.mqtt.python) to permit the latest version.
- [Release notes](https://github.com/eclipse/paho.mqtt.python/releases)
- [Changelog](https://github.com/eclipse/paho.mqtt.python/blob/master/ChangeLog.txt)
- [Commits](eclipse-paho/paho.mqtt.python@v0.9...v2.1.0)

---
updated-dependencies:
- dependency-name: paho-mqtt
  dependency-type: direct:production
...

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

requirements.txt

@@ -8,7 +8,7 @@ seaborn
 streamlit==1.31.0
 plotly
 apprise==1.8.0
-paho-mqtt<2.0.0
+paho-mqtt<3.0.0
 pytest==8.2.2
 scikit-learn
 suntime