5.12.0

What's Changed

• chore(sponsor): add testmu ai by @Eomm in https://github.com/fastify/fastify/pull/6922
• docs: add per-route logging for Google Cloud Functions by @slegarraga in https://github.com/fastify/fastify/pull/6907
• test: remove @sinonjs/fake-timers by @climba03003 in https://github.com/fastify/fastify/pull/6934
• [Backport 5.x] fix: remove raw response headers by @github-actions[bot] in https://github.com/fastify/fastify/pull/6939
• [Backport 5.x] test: use process-warning spyWarning for testing by @github-actions[bot] in https://github.com/fastify/fastify/pull/6945
• [Backport 5.x] feat: add Reply.prototype.mediaType by @github-actions[bot] in https://github.com/fastify/fastify/pull/6946
• [Backport 5.x] fix(content-type): return undefined for invalid media types by @github-actions[bot] in https://github.com/fastify/fastify/pull/6947

Full Changelog: https://github.com/fastify/fastify/compare/v5.11.3...v5.12.0