feat: support chai 6 (#170)

Author: 43081j

package-lock.json

@@ -38,7 +38,7 @@
     "format": "prettier --write lib"
   },
   "peerDependencies": {
-    "chai": "^5.0.0",
+    "chai": "^5.0.0 || ^6.0.0",
     "sinon": ">=4.0.0"
   },
   "devDependencies": {