Bump typescript from 4.0.3 to 4.0.5

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.0.3 to 4.0.5.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v4.0.3...v4.0.5)

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

package.json

@@ -48,7 +48,7 @@
         "terser-webpack-plugin": "^4.2.3",
         "tfx-cli": "^0.8.3",
         "ts-loader": "^8.0.6",
-        "typescript": "^4.0.3",
+        "typescript": "^4.0.5",
         "webpack": "^4.44.2",
         "webpack-cli": "^4.0.0"
     }