build(deps-dev): bump typescript from 3.9.3 to 4.3.5 in /frontend

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.3 to 4.3.5.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.3...v4.3.5)

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

Author: dependabot-preview[bot]

frontend/package-lock.json

@@ -19,7 +19,7 @@
     "@vue/cli-plugin-pwa": "^4.4.1",
     "@vue/cli-plugin-typescript": "^4.4.1",
     "@vue/cli-service": "^4.4.1",
-    "typescript": "~3.9.3",
+    "typescript": "~4.3.5",
     "vue-template-compiler": "^2.6.11"
   }
 }