Bump chai from 3.5.0 to 4.2.0

Bumps [chai](https://github.com/chaijs/chai) from 3.5.0 to 4.2.0.
- [Release notes](https://github.com/chaijs/chai/releases)
- [Changelog](https://github.com/chaijs/chai/blob/master/History.md)
- [Commits](chaijs/chai@3.5.0...4.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package-lock.json

@@ -35,7 +35,7 @@
     "triejs": "github:rueckstiess/triejs"
   },
   "devDependencies": {
-    "chai": "^3.4.1",
+    "chai": "^4.2.0",
     "electron": "^6.0.0",
     "electron-mocha": "^8.1.2",
     "electron-rebuild": "^1.8.8",