worker thread blocks

[etmmvdp]

Once a while I noticed that domoticz was not updating the p1/watermeter counter anymore. It also shows an error that the p1/watermeter worker thread was not responsive. The only way to fix this was to restart the domoticz server
In once such case I used gdb to learn the worker thread was blocking in a call to urllib.request.urlopen
By adding a timeout argument to this call the blocked problem is fixed.
I now see once a while a log message regarding failed communications but that's a benign condition which is most likely fixed in the next update request.

2025-01-06 10:13:41.529 Status: Watermeter: Started.
2025-01-06 10:13:41.530 Status: Watermeter: Entering work loop.
2025-01-06 10:13:42.321 Status: Watermeter: Initialized version 1.0.0, author 'Eraser'
2025-01-06 11:26:41.138 Error: Watermeter: Failed to communicate with Wi-Fi Watermeter at ip 192.168.1.4 with port 80
2025-01-06 14:16:11.088 Error: Watermeter: Failed to communicate with Wi-Fi Watermeter at ip 192.168.1.4 with port 80
2025-01-06 17:48:31.115 Error: Watermeter: Failed to communicate with Wi-Fi Watermeter at ip 192.168.1.4 with port 80
2025-01-06 20:19:42.359 Error: Watermeter: Failed to communicate with Wi-Fi Watermeter at ip 192.168.1.4 with port 80
2025-01-06 21:55:42.813 Error: Watermeter: Failed to communicate with Wi-Fi Watermeter at ip 192.168.1.4 with port 80
2025-01-06 23:18:32.107 Error: Watermeter: Failed to communicate with Wi-Fi Watermeter at ip 192.168.1.4 with port 80

See also my fix at:
gettevan@6f0be08