loongson/pypi: links for pypdf2-fields

loongson/mirror PyPDF2_Fields-1.0.1.tar.gz
loongson/mirror PyPDF2_Fields-1.0.0.tar.gz
loongson/mirror PyPDF2_Fields-0.1.3.tar.gz
loongson/mirror PyPDF2_Fields-0.1.2.tar.gz
loongson/mirror PyPDF2_Fields-0.1.1.tar.gz
loongson/mirror PyPDF2_Fields-0.1.0.tar.gz