loongson/pypi: links for pdf-mcp-watermark-image

loongson/mirror pdf_mcp_watermark_image-0.1.4.tar.gz
loongson/mirror pdf_mcp_watermark_image-0.1.4-py3-none-any.whl
loongson/mirror pdf_mcp_watermark_image-0.1.3.tar.gz
loongson/mirror pdf_mcp_watermark_image-0.1.3-py3-none-any.whl
loongson/mirror pdf_mcp_watermark_image-0.1.2.tar.gz
loongson/mirror pdf_mcp_watermark_image-0.1.2-py3-none-any.whl