v3.3.4: Windows and GDC fixes

What's Changed

• Update README.md link to opensslv by @orip in #111
• Support GDC by splitting run in build, execute and cleanup by @aleferri in #113
• Add casts from SSLOptionType to c_long, required with OpenSSL 3+ on Windows by @kinke in #114

New Contributors

• @orip made their first contribution in #111
• @aleferri made their first contribution in #113

Full Changelog: v3.3.3...v3.3.4