chore(deps-dev): bump prettier

Bumps the minor-and-patch group with 1 update in the / directory: [prettier](https://github.com/prettier/prettier).


Updates `prettier` from 3.8.4 to 3.9.1
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/prettier@3.8.4...3.9.1)

---
updated-dependencies:
- dependency-name: prettier
  dependency-version: 3.9.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: minor-and-patch
...

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

Author: dependabot[bot]

package.json

@@ -15,7 +15,7 @@
     "eslint": "^9.39.1",
     "mocha": "^11.7.6",
     "nyc": "^18.0.0",
-    "prettier": "^3.8.4",
+    "prettier": "^3.9.1",
     "source-map-support": "^0.5.21",
     "ts-node": "^10.9.2",
     "typescript": "6.0.3",