minor #16779 [DependencyInjection] adjust Autowire attribute docs (kbond)

This PR was squashed before being merged into the 6.1 branch.

Discussion
----------

[DependencyInjection] adjust `Autowire` attribute docs

Follow up to #16629 per slack discussion.

For services and expressions, explicitly use the named argument.

Commits
-------

fd05739 [DependencyInjection] adjust `Autowire` attribute docs

Author: javiereguiluz

controller.rst

@@ -225,8 +225,8 @@ command:
 
 .. tip::
 
-    If you need control over the *exact* value of an argument, you can use the
-    ``#[Autowire]`` attribute::
+    If you need control over the *exact* value of an argument, or require a parameter,
+    you can use the ``#[Autowire]`` attribute::
 
         // ...
         use Psr\Log\LoggerInterface;
@@ -239,7 +239,7 @@ command:
                 int $max,
 
                 // inject a specific logger service
-                #[Autowire('@monolog.logger.request')]
+                #[Autowire(service: 'monolog.logger.request')]
                 LoggerInterface $logger,
 
                 // or inject parameter values

service_container/autowiring.rst

@@ -545,8 +545,8 @@ To fix this, you can :ref:`manually wire the problematic argument <services-manu
 in the service configuration. You wire up only the difficult arguments,
 Symfony takes care of the rest.
 
-You can also use the ``#[Autowire]`` parameter attribute to configure the
-problematic arguments:
+You can also use the ``#[Autowire]`` parameter attribute to instruct the autowiring
+logic about those arguments:
 
     // src/Service/MessageGenerator.php
     namespace App\Service;
@@ -557,7 +557,7 @@ problematic arguments:
     class MessageGenerator
     {
         public function __construct(
-            #[Autowire('@monolog.logger.request')] LoggerInterface $logger
+            #[Autowire(service: 'monolog.logger.request')] LoggerInterface $logger
         ) {
             // ...
         }
@@ -586,8 +586,8 @@ and even :doc:`complex expressions </service_container/expression_language>`::
             #[Autowire('%kernel.debug%')]
             bool $debugMode,
 
-            // and @=... for expressions
-            #[Autowire("@=service("App\\Mail\\MailerConfiguration").getMailerMethod()")]
+            // and expressions
+            #[Autowire(expression: "service("App\\Mail\\MailerConfiguration").getMailerMethod()")]
             string $mailerMethod
         ) {
         }