4.50.4 - Updates for SOCKS5h support and PDF downloads

Updates for SOCKS5h support and PDF downloads

• Add support for "socks5h" proxies without auth
• Update how PDF downloads are handled
• Update console scripts
• Refresh optional Python dependencies
• Update documentation and comments
• Update examples

What's Changed

• Updates for SOCKS5h support and PDF downloads by @mdmintz in #4415

Full Changelog: v4.50.3...v4.50.4