build(deps-dev): bump eslint-config-prettier in /tools/syn2mas

Bumps [eslint-config-prettier](https://github.com/prettier/eslint-config-prettier) from 8.8.0 to 9.0.0.
- [Changelog](https://github.com/prettier/eslint-config-prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/eslint-config-prettier@v8.8.0...v9.0.0)

---
updated-dependencies:
- dependency-name: eslint-config-prettier
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

tools/syn2mas/package.json

@@ -19,7 +19,7 @@
     "@typescript-eslint/parser": "^5.62.0",
     "eslint": "^8.51.0",
     "eslint-config-google": "^0.14.0",
-    "eslint-config-prettier": "^8.8.0",
+    "eslint-config-prettier": "^9.0.0",
     "eslint-plugin-import": "^2.27.5",
     "eslint-plugin-matrix-org": "github:matrix-org/eslint-plugin-matrix-org",
     "eslint-plugin-unicorn": "^46.0.0",