Update usosapi.py

Compatibility with Python 3.3 fix.

Author: Maciej Strzelczyk

usosapi.py

@@ -160,7 +160,7 @@ def test_connection(self) -> bool:
             anonymous_session = self._service.get_session()
             now = anonymous_session.get('services/apisrv/now')
             now = now.json()
-            return bool(re.fullmatch(time_re, now))
+            return bool(re.match(time_re, now))
         except Exception as e:
             _LOGGER.debug('Connection test failed: {}'.format(e))
             return False