Bump typescript from 3.7.5 to 3.8.2

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.7.5 to 3.8.2.
- [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

@@ -46,7 +46,7 @@
         "tfx-cli": "^0.7.11",
         "ts-loader": "^6.2.1",
         "tslint": "^6.0.0",
-        "typescript": "^3.7.5",
+        "typescript": "^3.8.2",
         "webpack": "^4.41.6",
         "webpack-cli": "^3.3.11"
     }