chore(deps-dev): bump typescript from 3.9.7 to 4.0.3

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.7 to 4.0.3.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.7...v4.0.3)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -36,7 +36,7 @@
     "ts-jest": "^24.1.0",
     "tslint": "^6.1.2",
     "typedoc": "^0.17.8",
-    "typescript": "^3.9.6",
+    "typescript": "^4.0.3",
     "webpack": "^4.31.0",
     "webpack-cli": "^3.3.2"
   },