chore: pin prettier to 2.8.8

style-dictionary@4.4.0 pulls prettier@3.8.1, which conflicts with ui-codemods.
Pin prettier to 2.8.8 in the root package.json to resolve the version mismatch.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: git-nandor

package.json

@@ -99,6 +99,7 @@
     "lerna": "9.0.7",
     "lint-staged": "^17.0.8",
     "moment-timezone": "^0.6.2",
+    "prettier": "2.8.8",
     "react": "18.3.1",
     "read-package-up": "^12.0.0",
     "typescript": "6.0.3",