Update dependency fastify to v3.21.1

Author: renovate-bot

package-lock.json

@@ -85,7 +85,7 @@
     "easy-table": "1.1.1",
     "expand-tilde": "2.0.2",
     "fast-glob": "3.2.7",
-    "fastify": "3.21.0",
+    "fastify": "3.21.1",
     "fastify-basic-auth": "2.1.0",
     "fastify-blipp": "3.1.0",
     "fastify-cors": "6.0.2",