chore(deps): update dependency pymodbus to v3.12.0 (#131)

Author: renovate[bot]

requirements.txt

@@ -2,6 +2,6 @@ arrow==1.4.0
 environs==14.5.0
 marshmallow==4.2.2
 paho-mqtt==2.1.0
-pymodbus==3.11.4
+pymodbus==3.12.0
 pyyaml==6.0.3
 requests==2.32.5