ElevenLabs JavaScript SDK v2.54.0 dependency update

What's Changed

• Bump checkout and setup-node actions from v3 to v5 by @PaulAsjes in https://github.com/elevenlabs/elevenlabs-js/pull/412
• Remove temporary DynamicVariablesConfig fernignore entries by @kraenhansen in https://github.com/elevenlabs/elevenlabs-js/pull/414
• SDK regeneration by @fern-api[bot] in https://github.com/elevenlabs/elevenlabs-js/pull/415

Full Changelog: https://github.com/elevenlabs/elevenlabs-js/compare/v2.53.1...v2.54.0