Bump chai from 4.2.0 to 4.3.4

Bumps [chai](https://github.com/chaijs/chai) from 4.2.0 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@4.2.0...v4.3.4)

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

package.json

@@ -58,7 +58,7 @@
     "@postman/shipit": "0.2.0",
     "ajv": "6.12.6",
     "browserify": "16.5.2",
-    "chai": "4.2.0",
+    "chai": "4.3.4",
     "colors": "1.4.0",
     "editorconfig": "0.15.3",
     "eslint": "5.16.0",