chore(deps): update dependency fastify to v5.6.0 (#182)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -43,7 +43,7 @@
     "@eik/semantic-release-config": "1.0.8",
     "@eik/typescript-config": "1.0.0",
     "eslint": "9.35.0",
-    "fastify": "5.3.2",
+    "fastify": "5.6.0",
     "memfs": "4.17.1",
     "npm-run-all2": "8.0.4",
     "prettier": "3.5.3",