minor symfony#11750 use Cookie::create() (xabbuh)

This PR was merged into the 4.2 branch.

Discussion
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use Cookie::create()

Commits
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24ac112 use Cookie::create()

components/http_foundation.rst

@@ -413,7 +413,7 @@ attribute::
 
     use Symfony\Component\HttpFoundation\Cookie;
 
-    $response->headers->setCookie(new Cookie('foo', 'bar'));
+    $response->headers->setCookie(Cookie::create('foo', 'bar'));
 
 The
 :method:`Symfony\\Component\\HttpFoundation\\ResponseHeaderBag::setCookie`