Fix fastify/multipart issue

What's Changed

• Updated railway templated by @KloudAlpha in #62
• Bump @fastify/multipart from 7.3.0 to 7.4.1 by @dependabot in #69
• build(deps): bump undici from 5.9.1 to 5.19.1 by @dependabot in #71

New Contributors

• @KloudAlpha made their first contribution in #62

Full Changelog: v3.7.6...v4.1.0