Flip expected and actual value on assertCookie (#19495)

Problem: 

Test:
```
    $response->assertCookie("somecookie", 'expected');
```
Controller:

´´´
    Cookie::queue('somecookie', 'actual value', $days);
´´´
phpunit
´´´
There was 1 failure:

1) Tests\Feature\LifetimeCookiesTest::by_accessing_the_affiliation_link_a_cookie_must_be_stored
Cookie [somecookie] was found, but value [actual] does not match [expected].
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'actual'
+'expected'
´´´

Solution:
Flip expected and actual values

Author: eduPHP

src/Illuminate/Foundation/Testing/TestResponse.php

@@ -161,7 +161,7 @@ public function assertCookie($cookieName, $value = null, $encrypted = true)
             ? app('encrypter')->decrypt($cookieValue) : $cookieValue;
 
         PHPUnit::assertEquals(
-            $actual, $value,
+            $value, $actual,
             "Cookie [{$cookieName}] was found, but value [{$actual}] does not match [{$value}]."
         );