Made it possible to run the backup, cleanup and monitor commands in i…

…solated mode

src/Commands/BackupCommand.php

@@ -3,13 +3,14 @@
 namespace Spatie\Backup\Commands;
 
 use Exception;
+use Illuminate\Contracts\Console\Isolatable;
 use Spatie\Backup\Events\BackupHasFailed;
 use Spatie\Backup\Exceptions\BackupFailed;
 use Spatie\Backup\Exceptions\InvalidCommand;
 use Spatie\Backup\Tasks\Backup\BackupJobFactory;
 use Spatie\Backup\Traits\Retryable;
 
-class BackupCommand extends BaseCommand
+class BackupCommand extends BaseCommand implements Isolatable
 {
     use Retryable;
 

src/Commands/CleanupCommand.php

@@ -9,7 +9,7 @@
 use Spatie\Backup\Tasks\Cleanup\CleanupStrategy;
 use Spatie\Backup\Traits\Retryable;
 
-class CleanupCommand extends BaseCommand
+class CleanupCommand extends BaseCommand implements Isolatable
 {
     use Retryable;
 

src/Commands/MonitorCommand.php

@@ -6,7 +6,7 @@
 use Spatie\Backup\Events\UnhealthyBackupWasFound;
 use Spatie\Backup\Tasks\Monitor\BackupDestinationStatusFactory;
 
-class MonitorCommand extends BaseCommand
+class MonitorCommand extends BaseCommand implements Isolatable
 {
     /** @var string */
     protected $signature = 'backup:monitor';