chore(deps): update dependency chai to v4.3.4

Author: renovate-bot

package-lock.json

@@ -71,7 +71,7 @@
     "@commitlint/config-conventional": "11.0.0",
     "@commitlint/travis-cli": "11.0.0",
     "@lykmapipo/mongoose-test-helpers": "0.7.25",
-    "chai": "4.3.3",
+    "chai": "4.3.4",
     "commitizen": "4.2.3",
     "coveralls": "3.1.0",
     "cz-conventional-changelog": "3.3.0",