Apply rector rules: add annotation for doctrine mapping

src/Bundle/ChillTaskBundle/Entity/Task/AbstractTaskPlaceEvent.php

@@ -55,10 +55,8 @@ class AbstractTaskPlaceEvent
 
     /**
      * Get datetime.
-     *
-     * @return datetime_immutable
      */
-    public function getDatetime()
+    public function getDatetime(): \DateTimeImmutable
     {
         return $this->datetime;
     }
@@ -95,11 +93,9 @@ class AbstractTaskPlaceEvent
     /**
      * Set datetime.
      *
-     * @param datetime_immutable $datetime
-     *
      * @return AbstractTaskPlaceEvent
      */
-    public function setDatetime($datetime)
+    public function setDatetime(\DateTimeImmutable $datetime)
     {
         $this->datetime = $datetime;