chore(deps): update dependency chai to v6

Author: renovate[bot]

package.json

@@ -81,7 +81,7 @@
     "@typescript-eslint/types": "^8.29.0",
     "benchmark": "^2.1.4",
     "c8": "^10.1.3",
-    "chai": "^5.2.0",
+    "chai": "^6.0.0",
     "env-cmd": "^10.1.0",
     "esbuild": "^0.25.1",
     "eslint": "~9.33.0",