bug #18937 [Console] Fix codeblock markup (smnandre)

This PR was merged into the 5.4 branch.

Discussion
----------

[Console] Fix codeblock markup

Bug visible on `5.4` `6.2` `6.3` `6.4` & `7.0`

| 5.4 | 6.2 | 6.4 |
| - | - | - |
| ![a](https://github.com/symfony/symfony-docs/assets/1359581/58d7b403-bd63-4d02-ae0a-d666c5a39524) | ![b](https://github.com/symfony/symfony-docs/assets/1359581/bb692c0b-7235-435c-9e90-b4eee2c70d58) | ![c](https://github.com/symfony/symfony-docs/assets/1359581/9efb349a-3c10-4393-b3aa-d194f12db923) |

Commits
-------

7e4c376 [Console] Fix codeblock markup

Author: OskarStark

console.rst

@@ -585,7 +585,7 @@ call ``setAutoExit(false)`` on it to get the command result in ``CommandTester``
 When testing your commands, it could be useful to understand how your command
 reacts on different settings like the width and the height of the terminal.
 You have access to such information thanks to the
-:class:`Symfony\\Component\\Console\\Terminal` class:
+:class:`Symfony\\Component\\Console\\Terminal` class::
 
     use Symfony\Component\Console\Terminal;