minor #354 [AI Bundle] Fix indentation (OskarStark)

This PR was merged into the main branch.

Discussion
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[AI Bundle] Fix indentation

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Docs?         | no
| Issues        | --
| License       | MIT

Commits
-------

a599d94 [AI Bundle] Fix indentation

Author: OskarStark

src/ai-bundle/config/options.php

@@ -78,7 +78,7 @@
                     ->end()
                     ->arrayNode('cerebras')
                         ->children()
-                        ->scalarNode('api_key')->isRequired()->end()
+                            ->scalarNode('api_key')->isRequired()->end()
                         ->end()
                     ->end()
                 ->end()