add missing i18n key #692

Job	Run time
call-mediawiki-tests-workflow (REL1_41, 8.2, 82, false, true) / REL1_41 \| PHP 8.2	3m 16s
call-mediawiki-tests-workflow (REL1_40, 8.1, 81, true, false) / REL1_40 \| PHP 8.1	4m 8s
call-mediawiki-tests-workflow (master, 8.2, 82, false, true) / master \| PHP 8.2	3m 7s
notify-irc	24s
	10m 55s

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