Bump typescript from 3.9.7 to 4.0.5 (#702)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.7 to 4.0.5.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.7...v4.0.5)

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

@@ -71,6 +71,6 @@
     "rc-trigger": "^5.0.4",
     "react": "^16.0.0",
     "react-dom": "^16.0.0",
-    "typescript": "^3.7.2"
+    "typescript": "^4.0.5"
   }
 }