fix: update Sofar software_version wordcount to 4

Reduces wordcount from 12 to 4 on register 0x44F. This fixes the software version string triplication issue on Sofar/ZCS HYD inverters.

Author: vinceg0267

custom_components/solax_modbus/plugin_sofar.py

@@ -1195,7 +1195,7 @@ def value_function_sync_rtc_ymd_sofar(initval: Any, descr: Any, datadict: dict[s
         key="software_version",
         register=0x44F,
         register_data_type=REGISTER_STR,
-        wordcount=12,
+        wordcount=4,
         entity_category=EntityCategory.DIAGNOSTIC,
         allowedtypes=HYBRID | PV,
     ),