minor #20993 [DependencyInjection] Update AsTaggedItem parameters name in the file value_resolver.rst (makraz)

This PR was submitted for the 7.3 branch but it was merged into the 6.4 branch instead.

Discussion
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[DependencyInjection] Update AsTaggedItem parameters name in the file value_resolver.rst

Update AsTaggedItem parameter `name` to `index` ([Attribute](https://github.com/symfony/symfony/blob/7.3/src/Symfony/Component/DependencyInjection/Attribute/AsTaggedItem.php#L27))

Commits
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a73b542 Update AsTaggedItem parameters name in the file value_resolver.rst

Author: xabbuh

controller/value_resolver.rst

@@ -382,7 +382,7 @@ but you can set it yourself to change its ``priority`` or ``name`` attributes.
         use Symfony\Component\DependencyInjection\Attribute\AsTaggedItem;
         use Symfony\Component\HttpKernel\Controller\ValueResolverInterface;
 
-         #[AsTaggedItem(name: 'booking_id', priority: 150)]
+         #[AsTaggedItem(index: 'booking_id', priority: 150)]
         class BookingIdValueResolver implements ValueResolverInterface
         {
             // ...