minor #25553 Add php_unit_dedicate_assert to PHPCS (carusogabriel)

This PR was merged into the 2.7 branch.

Discussion
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Add php_unit_dedicate_assert to PHPCS

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #25420
| License       | MIT
| Doc PR        | -

Forgot to add this in #25420 😅

Commits
-------

e913b68 Add php_unit_dedicate_assert to PHPCS

.php_cs.dist

@@ -10,6 +10,7 @@ return PhpCsFixer\Config::create()
         '@Symfony:risky' => true,
         'array_syntax' => array('syntax' => 'long'),
         'protected_to_private' => false,
+        'php_unit_dedicate_assert' => array('target' => '3.5'),
     ))
     ->setRiskyAllowed(true)
     ->setFinder(

src/Symfony/Component/Intl/Tests/DateFormatter/AbstractIntlDateFormatterTest.php

@@ -231,7 +231,6 @@ abstract class AbstractIntlDateFormatterTest extends TestCase
             array('s', 3601, '1'),
             array('s', 3630, '30'),
             array('s', 43200, '0'), // 12 hours
-
         );
 
         $dateTime = new \DateTime('@0');

src/Symfony/Component/Routing/Tests/Matcher/Dumper/PhpMatcherDumperTest.php

@@ -75,7 +75,7 @@ class PhpMatcherDumperTest extends TestCase
                         ->setMethods(array('redirect'))
                         ->setConstructorArgs(array(new RequestContext()))
                         ->getMock();
-        
+
         $matcher->expects($this->once())->method('redirect')->with('/foo%3Abar/', 'foo');
 
         $matcher->match('/foo%3Abar');