chore: update fastify to ^5.0.0 (#151)

Author: Fdawgs

package.json

@@ -37,7 +37,7 @@
     "@fastify/pre-commit": "^2.1.0",
     "@types/node": "^22.0.0",
     "c8": "^10.1.2",
-    "fastify": "^5.0.0-alpha.4",
+    "fastify": "^5.0.0",
     "snazzy": "^9.0.0",
     "standard": "^17.1.0",
     "tsd": "^0.31.0"