Add classify cleanup task to nextcloud

nextcloud/image/Dockerfile

@@ -11,5 +11,6 @@ ENV NEXTCLOUD_UPDATE=1
 
 RUN echo '*/15 * * * * php /var/www/html/occ preview:generate-all' >> /var/spool/cron/crontabs/www-data
 RUN echo '0 2 * * 0 php /var/www/html/occ recognize:recrawl' >> /var/spool/cron/crontabs/www-data
+RUN echo '1 2 * * 0 php /var/www/html/occ recognize:cleanup-tags' >> /var/spool/cron/crontabs/www-data
 
 CMD ["/usr/bin/supervisord", "-c", "/supervisord.conf"]]