chore(deps): bump fastify from 4.20.0 to 4.21.0

Bumps [fastify](https://github.com/fastify/fastify) from 4.20.0 to 4.21.0.
- [Release notes](https://github.com/fastify/fastify/releases)
- [Commits](fastify/fastify@v4.20.0...v4.21.0)

---
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

@@ -131,7 +131,7 @@
     "eslint-plugin-import": "2.27.5",
     "eventsource": "2.0.2",
     "fancy-log": "2.0.0",
-    "fastify": "4.20.0",
+    "fastify": "4.21.0",
     "graphql": "16.7.1",
     "graphql-tools": "9.0.0",
     "gulp": "4.0.2",

packages/platform-fastify/package.json

@@ -21,7 +21,7 @@
     "@fastify/cors": "8.3.0",
     "@fastify/formbody": "7.4.0",
     "@fastify/middie": "8.3.0",
-    "fastify": "4.20.0",
+    "fastify": "4.21.0",
     "light-my-request": "5.10.0",
     "path-to-regexp": "3.2.0",
     "tslib": "2.6.1"