Release 2.32 (#5411)

* bump packages
* dynamic invoice options
* make sure that invoice previews can be detected
* support for mpdf associated files
* do not include any future times in work contract calculation
* re-add username column in Excel spreadsheet
* deactivate internal rate editing
* show if plugin update exists
* shorten name to Kimai only, without Time-Tracking
* remove check for existing id in work contract
* fix metafield already defined in search
* helper methods to unlock months
* new translation
* send event on unlock month

tests/EventSubscriber/EmailSubscriberTest.php

@@ -27,6 +27,7 @@ class EmailSubscriberTest extends TestCase
         $events = EmailSubscriber::getSubscribedEvents();
         self::assertArrayHasKey(EmailEvent::class, $events);
         $methodName = $events[EmailEvent::class][0];
+        self::assertIsString($methodName);
         self::assertTrue(method_exists(EmailSubscriber::class, $methodName));
     }