build(deps-dev): Bump typescript from 3.9.7 to 4.0.2

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.7 to 4.0.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.7...v4.0.2)

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

package.json

@@ -50,7 +50,7 @@
     "source-map-support": "^0.5.12",
     "ts-node": "^8.1.0",
     "tslint": "^6.0.0",
-    "typescript": "^3.4.4"
+    "typescript": "^4.0.2"
   },
   "config": {
     "commitizen": {