loongson/pypi: links for scamper

loongson/mirror scamper-20260105.tar.gz
loongson/mirror scamper-20251113.tar.gz
loongson/mirror scamper-20251020.tar.gz
loongson/mirror scamper-20251002.tar.gz
loongson/mirror scamper-20250729.tar.gz
loongson/mirror scamper-20250630.tar.gz
loongson/mirror scamper-20250603.tar.gz
loongson/mirror scamper-20250505.tar.gz
loongson/mirror scamper-20250401.tar.gz