build(deps-dev): bump chai from 4.3.3 to 4.3.4

Bumps [chai](https://github.com/chaijs/chai) from 4.3.3 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@4.3.3...v4.3.4)

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

package.json

@@ -94,7 +94,7 @@
     "@types/express": "^4.17.11",
     "babel-loader": "^8.2.2",
     "browser-sync": "^2.26.14",
-    "chai": "^4.3.3",
+    "chai": "^4.3.4",
     "chai-cheerio": "^1.0.0",
     "check-for-leaks": "^1.2.1",
     "cheerio": "^1.0.0-rc.5",