minor symfony#23058 [TwigBundle] fix used class name in deprecation message (xabbuh)

This PR was merged into the 3.4 branch.

Discussion
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[TwigBundle] fix used class name in deprecation message

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Commits
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a4caa16 fix used class name in deprecation message

Author: nicolas-grekas

src/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheWarmer.php

@@ -41,7 +41,7 @@ public function __construct($container, \Traversable $iterator)
             $this->container = $container;
         } elseif ($container instanceof Environment) {
             $this->twig = $container;
-            @trigger_error(sprintf('Using a "%s" as first argument of %s is deprecated since version 3.4 and will be unsupported in version 4.0. Use a %s instead.', Environment::class, __CLASS__, Container::class), E_USER_DEPRECATED);
+            @trigger_error(sprintf('Using a "%s" as first argument of %s is deprecated since version 3.4 and will be unsupported in version 4.0. Use a %s instead.', Environment::class, __CLASS__, ContainerInterface::class), E_USER_DEPRECATED);
         } else {
             throw new \InvalidArgumentException(sprintf('%s only accepts instance of Psr\Container\ContainerInterface as first argument.', __CLASS__));
         }