Bump black from 25.1.0 to 25.9.0 (#245)

Author: yozik04

requirements.txt

@@ -1,6 +1,6 @@
 async_modbus >= 0.2.2
 async_timeout >= 4.0.0
-black==25.1.0
+black==25.9.0
 construct >= 2.10.0, < 3.0.0
 coverage>=6.0.0
 exceptiongroup >= 1.0.0