chore(deps): bump fastify from 5.3.3 to 5.4.0

Bumps [fastify](https://github.com/fastify/fastify) from 5.3.3 to 5.4.0.
- [Release notes](https://github.com/fastify/fastify/releases)
- [Commits](fastify/fastify@v5.3.3...v5.4.0)

---
updated-dependencies:
- dependency-name: fastify
  dependency-version: 5.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -37,7 +37,7 @@
     "class-transformer": "^0.5.1",
     "class-validator": "^0.14.2",
     "dotenv": "^16.5.0",
-    "fastify": "^5.3.3",
+    "fastify": "^5.4.0",
     "mysql2": "^3.14.1",
     "nodemailer": "^6.10.1",
     "reflect-metadata": "^0.2.2",