minor #20372 [DependencyInjection] fix attribute first element (maxhelias)

This PR was merged into the 7.1 branch.

Discussion
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[DependencyInjection] fix attribute first element

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Commits
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1a72556 [DependencyInjection] fix attribute first element

Author: javiereguiluz

service_container/service_decoration.rst

@@ -620,7 +620,7 @@ Three different behaviors are available:
             class Bar
             {
                 public function __construct(
-                    private #[AutowireDecorated] $inner,
+                    #[AutowireDecorated] private $inner,
                 ) {
                 }