[Agent] Use static closures in array_map calls

Author: OskarStark

src/agent/src/Agent.php

@@ -69,7 +69,7 @@ public function getName(): string
     public function call(MessageBag $messages, array $options = []): ResultInterface
     {
         $input = new Input($this->getModel(), $messages, $options);
-        array_map(fn (InputProcessorInterface $processor) => $processor->processInput($input), $this->inputProcessors);
+        array_map(static fn (InputProcessorInterface $processor) => $processor->processInput($input), $this->inputProcessors);
 
         $model = $input->getModel();
         $messages = $input->getMessageBag();
@@ -78,7 +78,7 @@ public function call(MessageBag $messages, array $options = []): ResultInterface
         $result = $this->platform->invoke($model, $messages, $options)->getResult();
 
         $output = new Output($model, $result, $messages, $options);
-        array_map(fn (OutputProcessorInterface $processor) => $processor->processOutput($output), $this->outputProcessors);
+        array_map(static fn (OutputProcessorInterface $processor) => $processor->processOutput($output), $this->outputProcessors);
 
         return $output->getResult();
     }