chore(deps-dev): bump typescript from 3.9.7 to 4.0.2 (#99)

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/compare/v3.9.7...v4.0.2)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -48,7 +48,7 @@
     "prettier": "2.0.5",
     "reflect-metadata": "0.1.13",
     "rxjs": "6.6.2",
-    "typescript": "3.9.7"
+    "typescript": "4.0.2"
   },
   "peerDependencies": {
     "@nestjs/common": "^6.7.0 || ^7.0.0",