Bump typescript from 3.8.3 to 3.9.2

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.8.3 to 3.9.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v3.8.3...v3.9.2)

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

package.json

@@ -62,7 +62,7 @@
     "playwright-core": "^0.11.1",
     "source-map-loader": "^0.2.4",
     "ts-loader": "^7.0.4",
-    "typescript": "3.8",
+    "typescript": "3.9",
     "utf8": "^3.0.0",
     "webpack": "^4.43.0",
     "webpack-cli": "^3.3.11",