Bump typescript from 3.9.6 to 4.0.3

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.6 to 4.0.3.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.6...v4.0.3)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -93,6 +93,6 @@
     "jest": "^26.2.2",
     "prettier": "2.0.5",
     "react-test-renderer": "^16.13.1",
-    "typescript": "^3.9.6"
+    "typescript": "^4.0.3"
   }
 }