chore: update fastify to ^5.0.0

Author: Fdawgs

package.json

@@ -39,7 +39,7 @@
     "@fastify/secure-session": "^8.0.0",
     "@fastify/session": "^11.0.0",
     "@types/node": "^22.0.0",
-    "fastify": "^5.0.0-alpha.4",
+    "fastify": "^5.0.0",
     "proxyquire": "^2.1.3",
     "sinon": "^19.0.2",
     "standard": "^17.1.0",