issue #145: catch errors when indexing documents #525

Job	Run time
ci / check if job needs to run	4s
ci / prepare test matrix	10s
ci / MOODLE_401_STABLE - pgsql - php 8.0 - mod_cms	3m 27s
ci / MOODLE_401_STABLE - pgsql - php 7.4 - mod_cms	3m 15s
ci / MOODLE_401_STABLE - mariadb - php 7.4 - mod_cms	3m 4s
ci / MOODLE_401_STABLE - mariadb - php 8.0 - mod_cms	3m 26s
ci / MOODLE_402_STABLE - pgsql - php 8.0 - mod_cms	2m 55s
ci / MOODLE_402_STABLE - mariadb - php 8.0 - mod_cms	2m 53s
ci / MOODLE_402_STABLE - pgsql - php 8.1 - mod_cms	3m 26s
ci / MOODLE_402_STABLE - mariadb - php 8.1 - mod_cms	3m 14s
ci / MOODLE_403_STABLE - pgsql - php 8.0 - mod_cms	3m 14s
ci / MOODLE_403_STABLE - mariadb - php 8.0 - mod_cms	3m 4s
ci / MOODLE_403_STABLE - mariadb - php 8.2 - mod_cms	3m 13s
ci / MOODLE_403_STABLE - pgsql - php 8.2 - mod_cms	3m 14s
ci / MOODLE_404_STABLE - pgsql - php 8.1 - mod_cms	3m 10s
ci / MOODLE_404_STABLE - mariadb - php 8.1 - mod_cms	3m 11s
ci / MOODLE_404_STABLE - pgsql - php 8.3 - mod_cms	3m 1s
ci / MOODLE_404_STABLE - mariadb - php 8.3 - mod_cms	2m 57s
ci / MOODLE_405_STABLE - pgsql - php 8.1 - mod_cms	3m 15s
ci / MOODLE_405_STABLE - mariadb - php 8.1 - mod_cms	3m 34s
ci / MOODLE_405_STABLE - pgsql - php 8.3 - mod_cms	3m 9s
ci / MOODLE_405_STABLE - mariadb - php 8.3 - mod_cms	2m 58s
ci / Release to the Moodle plugin directory	0s
	1h 3m 54s

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