Add compatibility command registration for PHP 7.4

packages/fractor/config/application.php

@@ -9,6 +9,7 @@
 use a9f\Fractor\Configuration\SkipConfigurationFactory;
 use a9f\Fractor\Configuration\ValueObject\SkipConfiguration;
 use a9f\Fractor\Console\Application\FractorApplication;
+use a9f\Fractor\Console\Command\ProcessCommand;
 use a9f\Fractor\Console\Output\OutputFormatterCollector;
 use a9f\Fractor\Differ\ConsoleDiffer;
 use a9f\Fractor\Differ\Contract\Differ;
@@ -80,6 +81,16 @@ static function (ChildDefinition $definition, AsCommand $attribute): void {
         }
     );
 
+    // PHP 7.4 compatibility; only required for released versions
+    if (PHP_MAJOR_VERSION < 8) {
+        $containerBuilder->register(ProcessCommand::class)
+            ->addTag('console.command', [
+                'command' => 'process',
+                'description' => 'Runs Fractor with the given configuration file',
+            ])
+            ->setAutowired(true);
+    }
+
     $services->set('parameter_bag', ContainerBag::class)
         ->args([service('service_container')])
         ->alias(ContainerBagInterface::class, 'parameter_bag')