chore(deps): update dependency chai to v6

Author: renovate[bot]

package-lock.json

@@ -42,7 +42,7 @@
     "@types/node": "22.18.1",
     "@typescript-eslint/eslint-plugin": "7.18.0",
     "@typescript-eslint/parser": "7.18.0",
-    "chai": "^4.3.10",
+    "chai": "^6.0.0",
     "eslint": "8.57.1",
     "eslint-config-prettier": "10.1.8",
     "eslint-plugin-import": "2.32.0",