chore(deps-dev): bump typescript from 3.9.9 to 4.2.3 (#606)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.9 to 4.2.3.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.9...v4.2.3)

Signed-off-by: dependabot-preview[bot] <[email protected]>

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

Author: dependabot-preview[bot]

package.json

@@ -64,6 +64,6 @@
     "jsonp": "^0.2.1",
     "np": "^6.0.0",
     "rc-dialog": "^8.1.1",
-    "typescript": "^3.9.3"
+    "typescript": "^4.2.3"
   }
 }