Fix System.IndexOutOfRangeException

Fix "System.IndexOutOfRangeException: Index was outside the bounds of the array." when row cookie is "Set-Cookie: ;Secure;SameSite=None"

Author: aidenpearce79

Leaf.xNet/~Http/CookieStorage.cs

@@ -156,6 +156,9 @@ public void Set(Uri requestAddress, string rawCookie)
 
             // Получаем ключ и значение самой Cookie
             var keyValue = arguments[0].Split(new[] {'='}, 2);
+            if (keyValue.Length <= 1)
+                return;
+            
             keyValue[0] = keyValue[0].Trim();
             keyValue[1] = keyValue[1].Trim();