Release 2.9.0 (#4526)

* added fix to work around bc break in new phpword version
* fix phpoffice deprecations
* mark unused option as deprecated
* support for DateTimeInterface and DateTimeImmutable where possible
* use TRUSTED_PROXIES setting - fixes #4533
* re-enable Kimai test in docker test build script (#4541)
* bump dependencies

src/Repository/Query/TimesheetQuery.php

@@ -14,7 +14,7 @@ use App\Entity\Tag;
 use App\Entity\User;
 use App\Form\Model\DateRange;
 
-class TimesheetQuery extends ActivityQuery implements BillableInterface
+class TimesheetQuery extends ActivityQuery implements BillableInterface, DateRangeInterface
 {
     use BillableTrait;
     use DateRangeTrait;