[BUGFIX] Make LanguagePackCommand schedulable

Due to a regression the LanguagePackCommand wasn't schedulable.
The command registration is now extended to re-add the flag.

Releases: master
Resolves: #94048
Related: #93174
Change-Id: I61c315229472a733be4e1d28c42d23be7fba0fb9
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68981


Tested-by: Benjamin Franzke <bfr@qbus.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Benjamin Franzke <bfr@qbus.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>

typo3/sysext/install/Classes/ServiceProvider.php

@@ -320,7 +320,9 @@ class ServiceProvider extends AbstractServiceProvider
         $commandRegistry->addLazyCommand(
             'language:update',
             Command\LanguagePackCommand::class,
-            'Update the language files of all activated extensions'
+            'Update the language files of all activated extensions',
+            false,
+            true
         );
         $commandRegistry->addLazyCommand(
             'upgrade:run',