Release 2.39 (#5604)

* prepare audit via annotation
* default calendar slot label distance of 1h
+ replace freestyle config with dropdown
* added missing return definition in callbacks
* refactor view name handling
* dispatch calendar view changes and push them into the URL to be able to reload the poage
* bump packages
* fix timezone issue in calendar sum calculation
* fixes #5618 resetRates()
* show expected daily hours in working-contract screen

tests/Controller/CustomerControllerTest.php

@@ -68,7 +68,7 @@ class CustomerControllerTest extends AbstractControllerBaseTestCase
 
         $fixture = new CustomerFixtures();
         $fixture->setAmount(5);
-        $fixture->setCallback(function (Customer $customer) {
+        $fixture->setCallback(function (Customer $customer): void {
             $customer->setVisible(true);
             $customer->setComment('I am a foobar with tralalalala some more content');
             $customer->setMetaField((new CustomerMeta())->setName('location')->setValue('homeoffice'));