Replace opis/closure with laravel/serializable-closure in code

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

lib/private/Command/ClosureJob.php

@@ -26,7 +26,7 @@ use OC\BackgroundJob\QueuedJob;
 
 class ClosureJob extends QueuedJob {
 	protected function run($serializedCallable) {
-		$callable = \Opis\Closure\unserialize($serializedCallable);
+		$callable = unserialize($serializedCallable)->getClosure();
 		if (is_callable($callable)) {
 			$callable();
 		} else {

lib/private/Command/CommandJob.php

@@ -30,7 +30,7 @@ use OCP\Command\ICommand;
  */
 class CommandJob extends QueuedJob {
 	protected function run($serializedCommand) {
-		$command = \Opis\Closure\unserialize($serializedCommand);
+		$command = unserialize($serializedCommand);
 		if ($command instanceof ICommand) {
 			$command->handle();
 		} else {

lib/private/Command/CronBus.php

@@ -26,6 +26,7 @@
 namespace OC\Command;
 
 use OCP\Command\ICommand;
+use Laravel\SerializableClosure\SerializableClosure;
 
 class CronBus extends AsyncBus {
 	/**
@@ -67,9 +68,9 @@ class CronBus extends AsyncBus {
 	 */
 	private function serializeCommand($command) {
 		if ($command instanceof \Closure) {
-			return \Opis\Closure\serialize($command);
+			return serialize(new SerializableClosure($command));
 		} elseif (is_callable($command) or $command instanceof ICommand) {
-			return \Opis\Closure\serialize($command);
+			return serialize($command);
 		} else {
 			throw new \InvalidArgumentException('Invalid command');
 		}