fix(deps): update dependency fastify to v5.3.3

Author: renovate[bot]

package-lock.json

@@ -29,7 +29,7 @@
     "discord-api-types": "0.37.105",
     "discord.js": "14.16.3",
     "dotenv": "16.4.5",
-    "fastify": "5.1.0",
+    "fastify": "5.3.3",
     "gifencoder": "2.0.1",
     "glob": "11.0.0",
     "mongoose": "8.8.1",