TCP: fix nina-fw minimum required version after certificate update

Author: pennam

Diff for: src/ArduinoIoTCloudTCP.cpp

@@ -183,8 +183,8 @@ int ArduinoIoTCloudTCP::begin(bool const enable_watchdog, String brokerAddress,
 #endif // OTA_ENABLED && !defined(OFFLOADED_DOWNLOAD) && defined(OTA_BASIC_AUTH)
 
 #ifdef BOARD_HAS_OFFLOADED_ECCX08
-  if (String(WiFi.firmwareVersion()) < String("1.4.4")) {
-    DEBUG_ERROR("ArduinoIoTCloudTCP::%s In order to connect to Arduino IoT Cloud, NINA firmware needs to be >= 1.4.4, current %s", __FUNCTION__, WiFi.firmwareVersion());
+  if (String(WiFi.firmwareVersion()) < String("1.6.0")) {
+    DEBUG_ERROR("ArduinoIoTCloudTCP::%s In order to connect to Arduino IoT Cloud, NINA firmware needs to be >= 1.6.0, current %s", __FUNCTION__, WiFi.firmwareVersion());
     return 0;
   }
 #endif /* BOARD_HAS_OFFLOADED_ECCX08 */