loongson/pypi: links for toncenter-sdk-python

loongson/mirror toncenter_sdk_python-0.6.tar.gz
loongson/mirror toncenter_sdk_python-0.5.tar.gz
loongson/mirror toncenter_sdk_python-0.2.tar.gz
loongson/mirror toncenter_sdk_python-0.1.tar.gz