Update dependency chai to v4.3.9

Author: renovate[bot]

package.json

@@ -49,7 +49,7 @@
   },
   "devDependencies": {
     "@codechecks/client": "0.1.10",
-    "chai": "4.2.0",
+    "chai": "4.3.9",
     "coveralls": "3.1.0",
     "eslint": "7.11.0",
     "eslint-config-airbnb-base": "14.2.0",