loongson/pypi: links for egraph

loongson/mirror egraph-6.0.0a0-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
loongson/mirror egraph-0.3.1-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
loongson/mirror egraph-0.3.0-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
loongson/mirror egraph-0.2.1-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
loongson/mirror egraph-0.2.0-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
loongson/mirror egraph-0.1.0-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl