Bump typescript from 3.9.7 to 4.0.2

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.7 to 4.0.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.7...v4.0.2)

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

package.json

@@ -57,7 +57,7 @@
     "nyc": "^15.0.0",
     "ts-node": "^8.0.0",
     "ts-standard": "^8.0.0",
-    "typescript": "^3.0.0"
+    "typescript": "^4.0.2"
   },
   "husky": {
     "hooks": {