Bump cookie and light-my-request in /test/fastify/app

Bumps [cookie](https://github.com/jshttp/cookie) and [light-my-request](https://github.com/fastify/light-my-request). These dependencies needed to be updated together.

Updates `cookie` from 0.5.0 to 0.7.2
- [Release notes](https://github.com/jshttp/cookie/releases)
- [Commits](jshttp/cookie@v0.5.0...v0.7.2)

Updates `light-my-request` from 5.11.0 to 5.14.0
- [Release notes](https://github.com/fastify/light-my-request/releases)
- [Commits](fastify/light-my-request@v5.11.0...v5.14.0)

---
updated-dependencies:
- dependency-name: cookie
  dependency-type: indirect
- dependency-name: light-my-request
  dependency-type: indirect
...

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