loongson/mirror: links for labelme-ytu

loongson/mirror labelme-ytu-5.5.4.tar.gz
loongson/mirror labelme-ytu-5.5.3.tar.gz
loongson/mirror labelme-ytu-5.5.2.tar.gz
loongson/mirror labelme-ytu-5.5.1.tar.gz
loongson/mirror labelme-ytu-5.4.1.tar.gz