Island: Return current version number instead of None

monkey/monkey_island/cc/version.py

@@ -63,7 +63,7 @@ class Version:
             response = requests.get(url, timeout=LATEST_VERSION_TIMEOUT).json()
         except requests.exceptions.RequestException as err:
             logger.warning(f"Failed to connect to {url}, Error: {err}")
-            return None, None
+            return self._version_number, None
 
         try:
             download_link = response["download_link"]
@@ -73,6 +73,6 @@ class Version:
                 f"Failed to fetch version information from {url}, response: {response}."
                 f"Most likely deployment {self._deployment.value} is not recognized."
             )
-            return None, None
+            return self._version_number, None
 
         return latest_version, download_link