Update dependency prettier to v3.8.1

Author: renovate[bot]

package-lock.json

@@ -50,7 +50,7 @@
     "cypress-recurse": "1.37.2",
     "find-cypress-specs": "1.54.12",
     "highlight.js": "11.11.1",
-    "prettier": "3.7.4",
+    "prettier": "3.8.1",
     "reveal.js": "6.0.0",
     "start-server-and-test": "2.1.3",
     "vite": "7.3.1"