SaveTool: make the update checker split on CRLF, not just LF.

Just in case...

src/SaveTool/SaveTool_UpdateChecker.cpp

@@ -100,7 +100,7 @@ void SaveTool::updateCheckEvent(SDL_Event& event) {
 
     auto str = static_cast<char*>(event.user.data1);
     Containers::String response{str, strlen(str), nullptr};
-    auto components = response.split('\n');
+    auto components = response.splitOnAnyWithoutEmptyParts("\r\n");
 
     Version latest_ver{components.front()};