chore: bump typescript from 3.9.7 to 4.0.2 (#189)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.7 to 4.0.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/commits)

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

@@ -41,7 +41,7 @@
     "eslint": "6.8.0",
     "react": "16.13.1",
     "semantic-release-configuration": "1.0.20",
-    "typescript": "3.9.7"
+    "typescript": "4.0.2"
   },
   "scripts": {
     "analyse": "npx eslint --config node.js *.js lib/**/*.js"