Fix assertObjectHasAttribute deprecation warning (Moodle 4.5 compatib… #504

Job	Run time
ci / check if job needs to run	5s
ci / prepare test matrix	14s
ci / MOODLE_401_STABLE - pgsql - php 7.4 - mod_cms	3m 3s
ci / MOODLE_401_STABLE - mariadb - php 7.4 - mod_cms	2m 57s
ci / MOODLE_401_STABLE - pgsql - php 8.0 - mod_cms	3m 44s
ci / MOODLE_401_STABLE - mariadb - php 8.0 - mod_cms	3m 11s
ci / MOODLE_402_STABLE - pgsql - php 8.0 - mod_cms	2m 59s
ci / MOODLE_402_STABLE - mariadb - php 8.0 - mod_cms	3m 3s
ci / MOODLE_402_STABLE - pgsql - php 8.1 - mod_cms	2m 46s
ci / MOODLE_402_STABLE - mariadb - php 8.1 - mod_cms	2m 51s
ci / MOODLE_403_STABLE - pgsql - php 8.0 - mod_cms	2m 54s
ci / MOODLE_403_STABLE - mariadb - php 8.0 - mod_cms	3m 2s
ci / MOODLE_403_STABLE - pgsql - php 8.2 - mod_cms	3m 5s
ci / MOODLE_403_STABLE - mariadb - php 8.2 - mod_cms	3m 9s
ci / MOODLE_404_STABLE - pgsql - php 8.3 - mod_cms	3m 11s
ci / MOODLE_404_STABLE - pgsql - php 8.1 - mod_cms	2m 59s
ci / MOODLE_404_STABLE - mariadb - php 8.3 - mod_cms	3m 16s
ci / MOODLE_404_STABLE - mariadb - php 8.1 - mod_cms	3m 5s
ci / MOODLE_405_STABLE - pgsql - php 8.1 - mod_cms	3m 15s
ci / MOODLE_405_STABLE - mariadb - php 8.1 - mod_cms	3m 15s
ci / MOODLE_405_STABLE - pgsql - php 8.3 - mod_cms	3m 21s
ci / MOODLE_405_STABLE - mariadb - php 8.3 - mod_cms	3m 14s
ci / Release to the Moodle plugin directory	0s
	1h 2m 39s

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