loongson/pypi: links for jinja2

INFO: Because this project isn't in the mirror_whitelist, no releases from root/pypi are included.

loongson/pypi Jinja2-3.0.0.tar.gz
loongson/pypi Jinja2-3.0.0-py3-none-any.whl
loongson/pypi Jinja2-2.11.3-py2.py3-none-any.whl
loongson/pypi Jinja2-2.11.2-py2.py3-none-any.whl
loongson/pypi Jinja2-2.10.3-py2.py3-none-any.whl
loongson/pypi Jinja2-2.10.1-py2.py3-none-any.whl