[TASK] Fix namespace typo in SearchFormViewHelperTest

Correct namespace from `ViewHelper` to `ViewHelpers` in test file.

Author: froemken

…/ViewHelper/SearchFormViewHelperTest.php …ViewHelpers/SearchFormViewHelperTest.phpTests/Integration/ViewHelper/SearchFormViewHelperTest.php renamed to Tests/Integration/ViewHelpers/SearchFormViewHelperTest.php Tests/Integration/ViewHelper/SearchFormViewHelperTest.php renamed to Tests/Integration/ViewHelpers/SearchFormViewHelperTest.php

@@ -13,7 +13,7 @@
  * The TYPO3 project - inspiring people to share!
  */
 
-namespace ApacheSolrForTypo3\Solr\Tests\Integration\ViewHelper;
+namespace ApacheSolrForTypo3\Solr\Tests\Integration\ViewHelpers;
 
 use ApacheSolrForTypo3\Solr\System\Configuration\TypoScriptConfiguration;
 use ApacheSolrForTypo3\Solr\Tests\Integration\IntegrationTestBase;