build(deps-dev): bump chai from 3.5.0 to 4.3.4

Bumps [chai](https://github.com/chaijs/chai) from 3.5.0 to 4.3.4.
- [Release notes](https://github.com/chaijs/chai/releases)
- [Changelog](https://github.com/chaijs/chai/blob/main/History.md)
- [Commits](chaijs/chai@3.5.0...v4.3.4)

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

package.json

@@ -52,7 +52,7 @@
     "@babel/register": "^7.13.8",
     "babel-eslint": "^10.1.0",
     "babel-loader": "^8.2.2",
-    "chai": "^3.5.0",
+    "chai": "^4.3.4",
     "chunks-2-json-webpack-plugin": "^1.0.4",
     "copyfiles": "^2.4.1",
     "core-js": "^3.9.1",