Update dependency chai to v6

Author: renovate[bot]

package.json

@@ -50,7 +50,7 @@
     "@types/sinon": "^17.0.4",
     "@types/sinon-chai": "^4.0.0",
     "c8": "^10.1.3",
-    "chai": "^5.2.1",
+    "chai": "^6.0.0",
     "eslint": "^9.31.0",
     "eslint-plugin-simple-import-sort": "^12.1.1",
     "globals": "^16.3.0",