chore: pin dependency prettier to 3.8.0 (#366)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -87,7 +87,7 @@
     "mdast-util-from-markdown": "^2.0.2",
     "mdn-data": "^2.26.0",
     "mocha": "^11.0.0",
-    "prettier": "^3.7.3",
+    "prettier": "3.8.0",
     "tailwind-csstree": "^0.1.0",
     "typescript": "^5.9.2",
     "web-features": "^3.13.0",