minor #18406 [HttpKernel] Deprecate ContainerAwareInterface and ContainerAwareTrait (alexandre-daubois)

This PR was merged into the 6.4 branch.

Discussion
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[HttpKernel] Deprecate `ContainerAwareInterface` and `ContainerAwareTrait`

Related to symfony/symfony#50615

Fix #18440

Commits
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abd50b7 [HttpKernel] Deprecate `ContainerAwareInterface` and `ContainerAwareTrait`

Author: javiereguiluz

components/http_kernel.rst

@@ -263,6 +263,13 @@ on the request's information.
        is passed to it. This step is also specific to the  :class:`Symfony\\Bundle\\FrameworkBundle\\Controller\\ControllerResolver`
        sub-class used by the Symfony Framework.
 
+.. deprecated:: 6.4
+
+    :class:`Symfony\\Component\\DependencyInjection\\ContainerAwareInterface` and
+    :class:`Symfony\\Component\\DependencyInjection\\ContainerAwareTrait` are
+    deprecated since Symfony 6.4. Dependency injection should be used instead to
+    access the service container.
+
 .. _component-http-kernel-kernel-controller:
 
 3) The ``kernel.controller`` Event