chore(deps): update dependency fast-json-stringify to v6

Author: renovate[bot]

package.json

@@ -58,7 +58,7 @@
     "@types/remove-markdown": "0.3.4",
     "cross-env": "7.0.3",
     "eslint": "8.57.1",
-    "fast-json-stringify": "5.16.1",
+    "fast-json-stringify": "6.4.0",
     "fastify-tsconfig": "1.0.1",
     "lint-staged": "13.3.0",
     "prettier": "3.8.1",