Bump typescript from 3.9.5 to 3.9.6

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.5 to 3.9.6.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/commits)

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

package.json

@@ -48,7 +48,7 @@
         "terser-webpack-plugin": "^3.0.6",
         "tfx-cli": "^0.8.1",
         "ts-loader": "^7.0.5",
-        "typescript": "^3.9.5",
+        "typescript": "^3.9.6",
         "webpack": "^4.43.0",
         "webpack-cli": "^3.3.12"
     }