chore(deps): update dependency fastify to v5.2.1

Author: renovate[bot]

package.json

@@ -51,7 +51,7 @@
     "eslint-config-prettier": "10.0.1",
     "eslint-plugin-import": "2.31.0",
     "express": "5.0.1",
-    "fastify": "5.1.0",
+    "fastify": "5.2.1",
     "husky": "9.1.7",
     "jest": "29.7.0",
     "lerna-changelog": "2.2.0",