Bump typescript from 4.8.4 to 4.9.3

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.8.4 to 4.9.3.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/commits)

---
updated-dependencies:
- dependency-name: typescript
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -56,7 +56,7 @@
     "rollup-plugin-terser": "^7.0.2",
     "rollup-plugin-typescript2": "^0.34.1",
     "start-server-and-test": "^1.14.0",
-    "typescript": "^4.8.4"
+    "typescript": "^4.9.3"
   },
   "resolutions": {
     "lit": "^2.1.2",