Bump typescript from 3.9.5 to 4.0.2

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.5 to 4.0.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v3.9.5...v4.0.2)

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

package-lock.json

@@ -5871,9 +5871,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.5.tgz",
-      "integrity": "sha512-hSAifV3k+i6lEoCJ2k6R2Z/rp/H3+8sdmcn5NrS3/3kE7+RyZXm9aqvxWqjEXHAd8b0pShatpcdMTvEdvAJltQ==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.2.tgz",
+      "integrity": "sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ==",
       "dev": true
     },
     "uglify-js": {

package.json

@@ -35,7 +35,7 @@
     "prettier": "^2.0.5",
     "release-it": "^13.6.3",
     "start-server-and-test": "^1.11.0",
-    "typescript": "^3.9.5"
+    "typescript": "^4.0.2"
   },
   "repository": {
     "type": "git",