Fix usage of HttpCacheBundle TagHandler when it should be lib version

Author: André R

docs/using_tags.md

@@ -147,7 +147,7 @@ For PHP usage, a few options exist _(autowirable classes of '@fos_http_cache.han
      * Using low level Tag handler to add tags manually.
      * WARNING: This FOS class name, and service name is different in v3 (FosHttpCache 2.x).
      *
-     * @var \FOS\HttpCacheBundle\Handler\TagHandler $tagHandler
+     * @var \FOS\HttpCache\Handler\TagHandler $tagHandler
      */
     $tagHandler->addTags(['relation-33', 'relation-44']);
 

src/DependencyInjection/Compiler/DriverPass.php

@@ -7,7 +7,7 @@
 namespace EzSystems\PlatformHttpCacheBundle\DependencyInjection\Compiler;
 
 use EzSystems\PlatformHttpCacheBundle\Handler\ContentTagInterface;
-use FOS\HttpCacheBundle\Handler\TagHandler as FOSTagHandler;
+use FOS\HttpCache\Handler\TagHandler as FOSTagHandler;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;