Updated the $datetime parameter type

Author: sebprt

src/FormatDate.php

@@ -24,7 +24,7 @@ private function compile(string $dateTime, string $format)
             PHP;
     }
 
-    private function evaluate(array $context, string $dateTime, string $format)
+    private function evaluate(array $context, \DateTimeInterface $dateTime, string $format)
     {
         return $dateTime->format($format);
     }