loongson/pypi: links for pyobservable

loongson/mirror pyobservable-1.0.1.tar.gz
loongson/mirror pyobservable-1.0.1-py3-none-any.whl
loongson/mirror pyobservable-1.0.0.tar.gz
loongson/mirror pyobservable-1.0.0-py3-none-any.whl
loongson/mirror pyobservable-1.0.0a1.tar.gz
loongson/mirror pyobservable-1.0.0a1-py3-none-any.whl