feature symfony#60103 [Console] Mark AsCommand attribute as @final (Somrlik, GromNaN)

This PR was merged into the 7.3 branch.

Discussion
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[Console] Mark `AsCommand` attribute as ``@final``

| Q             | A
| ------------- | ---
| Branch?       | 7.3
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | yes
| License       | MIT

`AsCommand` attribute doesn't work as expected when extended and probably should be declared as final.

In order to not break BC and trigger a deprecation warning, I marked the attribute as ``@final`` as per suggestions in previous PR.

Superseeds symfony#60066 as I closed it accidentally, sorry for confusion 😕

Commits
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1db80a5 [Console] Mark `AsCommand` attribute as ``@final``

Author: GromNaN

UPGRADE-7.3.md

@@ -40,6 +40,7 @@ Console
    ```
 
  * Deprecate methods `Command::getDefaultName()` and `Command::getDefaultDescription()` in favor of the `#[AsCommand]` attribute
+ * `#[AsCommand]` attribute is now marked as `@final`; you should use separate attributes to add more logic to commands
 
 DependencyInjection
 -------------------

src/Symfony/Component/Console/Attribute/AsCommand.php

@@ -13,6 +13,8 @@
 
 /**
  * Service tag to autoconfigure commands.
+ *
+ * @final since Symfony 7.3
  */
 #[\Attribute(\Attribute::TARGET_CLASS)]
 class AsCommand

src/Symfony/Component/Console/CHANGELOG.md

@@ -13,6 +13,7 @@ CHANGELOG
  * Add support for Markdown format in `Table`
  * Add support for `LockableTrait` in invokable commands
  * Deprecate returning a non-integer value from a `\Closure` function set via `Command::setCode()`
+ * Mark `#[AsCommand]` attribute as `@final`
 
 7.2
 ---