chore(deps): update dependency chai to v6

Author: renovate[bot]

package-lock.json

@@ -36,7 +36,7 @@
     "@types/node": "22.17.1",
     "@typescript-eslint/eslint-plugin": "8.40.0",
     "@typescript-eslint/parser": "8.40.0",
-    "chai": "5.1.1",
+    "chai": "6.0.1",
     "esbuild": "0.25.9",
     "esbuild-register": "3.6.0",
     "eslint": "8.57.1",