build(deps-dev): bump @nestjs/platform-fastify from 10.4.8 to 10.4.9

Bumps [@nestjs/platform-fastify](https://github.com/nestjs/nest/tree/HEAD/packages/platform-fastify) from 10.4.8 to 10.4.9.
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](https://github.com/nestjs/nest/commits/v10.4.9/packages/platform-fastify)

---
updated-dependencies:
- dependency-name: "@nestjs/platform-fastify"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>