Update dependency aiomqtt to v2.3.1 (#337)

* Update dependency aiomqtt to v2.3.1

* update aiomqtt badge

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Stefan Allius <stefan.allius@t-online.de>

README.md

@@ -8,7 +8,7 @@
 <p align="center">
     <a href="https://opensource.org/licenses/BSD-3-Clause"><img alt="License: BSD-3-Clause" src="https://img.shields.io/badge/License-BSD_3--Clause-green.svg"></a>
     <a href="https://www.python.org/downloads/release/python-3130/"><img alt="Supported Python versions" src="https://img.shields.io/badge/python-3.13-blue.svg"></a>
-    <a href="https://sbtinstruments.github.io/aiomqtt/introduction.html"><img alt="Supported aiomqtt versions" src="https://img.shields.io/badge/aiomqtt-2.3.0-lightblue.svg"></a>
+    <a href="https://aiomqtt.bo3hm.com/introduction.html"><img alt="Supported aiomqtt versions" src="https://img.shields.io/badge/aiomqtt-2.3.1-lightblue.svg"></a>
     <a href="https://libraries.io/pypi/aiocron"><img alt="Supported aiocron versions" src="https://img.shields.io/badge/aiocron-1.8-lightblue.svg"></a>
     <a href="https://toml.io/en/v1.0.0"><img alt="Supported toml versions" src="https://img.shields.io/badge/toml-1.0.0-lightblue.svg"></a>
     <br>

app/requirements.txt

@@ -1,4 +1,4 @@
-    aiomqtt==2.3.0
+    aiomqtt==2.3.1
     schema==0.7.7
     aiocron==2.1
     aiohttp==3.11.14