chore(deps-dev): bump typescript from 3.9.8 to 4.1.4 (#728)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.8 to 4.1.4.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.8...v4.1.4)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -88,7 +88,7 @@
     "source-map-support": "^0.5.9",
     "ts-loader": "^8.0.1",
     "ts-node": "^7.0.1",
-    "typescript": "^3.2.2",
+    "typescript": "^4.1.4",
     "webpack": "^4.26.1",
     "webpack-cli": "^3.1.2"
   }