[BUG] Cannot create Event Queue Worker Scheduler Task

[achimfritz]

Describe the bug
trying to create a new Scheduler Task "Event Queue Worker" throws a TypeError Exception
ApacheSolrForTypo3\Solr\Task\EventQueueWorkerTask::setLimit(): Argument #1 ($limit) must be of type int, null given, called in /var/www/html/vendor/apache-solr-for-typo3/solr/Classes/Task/EventQueueWorkerTaskAdditionalFieldProvider.php on line 102

if you set your exceptionalErrors to include Warnings you got a TYPO3\CMS\Core\Error\Exception
PHP Warning: Undefined array key "solr_eventqueueworkertask_limit" in /var/www/html/vendor/apache-solr-for-typo3/solr/Classes/Task/EventQueueWorkerTaskAdditionalFieldProvider.php line 102

To Reproduce
Steps to reproduce the behavior:

1. Go to Scheduler Module
2. Click on new Task
3. Select Event Queue Worker
4. Choose proper Frequency
5. save

Expected behavior
Task is saved

Screenshots

Used versions (please complete the following information):

• TYPO3 Version: 12.4.5
• EXT:solr Version: 12.0.0-beta-1
• PHP 8.1