minor #31343 [Translation] Fixes typo in comment (jschaedl)

This PR was merged into the 3.4 branch.

Discussion
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[Translation] Fixes typo in comment

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | no <!-- don't forget to update src/**/CHANGELOG.md files -->
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no <!-- don't forget to update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | -  <!-- #-prefixed issue number(s), if any -->
| License       | MIT
| Doc PR        | - <!-- required for new features -->

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Commits
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e11985f [Translation] Fixes typo in comment

src/Symfony/Component/Translation/Util/ArrayConverter.php

@@ -27,7 +27,7 @@ class ArrayConverter
 {
     /**
      * Converts linear messages array to tree-like array.
-     * For example this rray('foo.bar' => 'value') will be converted to ['foo' => ['bar' => 'value']].
+     * For example this array('foo.bar' => 'value') will be converted to ['foo' => ['bar' => 'value']].
      *
      * @param array $messages Linear messages array
      *