v2.15.1

What's Changed

• Fix issue with conversation when no auth is required by @PaulAsjes in https://github.com/elevenlabs/elevenlabs-python/pull/620
• Add asyncio event loop by @PaulAsjes in https://github.com/elevenlabs/elevenlabs-python/pull/616

Full Changelog: https://github.com/elevenlabs/elevenlabs-python/compare/v2.15.0...v2.15.1