Update initialisation check for new PHP-8.3 API

Author: derickr

ext/date/php_date.c

@@ -4957,9 +4957,9 @@ PHP_METHOD(DatePeriod, __construct)
 		}
 	} else {
 		/* check initialisation */
-		DATE_CHECK_INITIALIZED(Z_PHPDATE_P(start)->time, DateTimeInterface);
+		DATE_CHECK_INITIALIZED(Z_PHPDATE_P(start)->time, date_ce_interface);
 		if (end) {
-			DATE_CHECK_INITIALIZED(Z_PHPDATE_P(end)->time, DateTimeInterface);
+			DATE_CHECK_INITIALIZED(Z_PHPDATE_P(end)->time, date_ce_interface);
 		}
 
 		/* init */

ext/date/tests/bug-gh11416.phpt

@@ -23,6 +23,6 @@ try {
 echo "OK\n";
 ?>
 --EXPECT--
-Error: The DateTimeInterface object has not been correctly initialized by its constructor
-Error: The DateTimeInterface object has not been correctly initialized by its constructor
+DateObjectError: Object of type DateTimeInterface has not been correctly initialized by calling parent::__construct() in its constructor
+DateObjectError: Object of type DateTimeInterface has not been correctly initialized by calling parent::__construct() in its constructor
 OK