fix(deps): Bump fastify from 4.23.2 to 4.24.3

Bumps [fastify](https://github.com/fastify/fastify) from 4.23.2 to 4.24.3.
- [Release notes](https://github.com/fastify/fastify/releases)
- [Commits](fastify/fastify@v4.23.2...v4.24.3)

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

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

package.json

@@ -25,7 +25,7 @@
     "@relaycorp/pino-cloud": "^1.0.28",
     "cloudevents": "^8.0.0",
     "env-var": "^7.4.1",
-    "fastify": "4.23.2",
+    "fastify": "4.24.3",
     "fastify-plugin": "^4.5.0",
     "pino": "^8.15.1"
   },