fix(ip.py): ignore non-utf format encoding (#288)

Co-authored-by: Red_Hairy_Mouse <56833537+cjw-bot@users.noreply.github.com>

util/ip.py

@@ -51,7 +51,7 @@ def _open(url, reg):
         debug("open: %s", url)
         res = urlopen(
             Request(url, headers={'User-Agent': 'curl/7.63.0-ddns'}),  timeout=60
-        ).read().decode('utf8')
+        ).read().decode('utf8', 'ignore')
         debug("response: %s",  res)
         return compile(reg).search(res).group()
     except Exception as e: