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

src/Form/ColorTrait.php

@@ -27,7 +27,7 @@ trait ColorTrait
         // this code exists only for backward compatibility
         $builder->addEventListener(
             FormEvents::PRE_SET_DATA,
-            function (FormEvent $event) use ($required) {
+            function (FormEvent $event) use ($required): void {
                 if (!$event->getForm()->getConfig()->hasOption('choices')) {
                     return;
                 }