Update dependency @biomejs/biome to v2

Author: renovate[bot]

package.json

@@ -4,7 +4,7 @@
   "description": "Development tool dependencies for dotfiles (run via lefthook).",
   "packageManager": "pnpm@10.33.2",
   "devDependencies": {
-    "@biomejs/biome": "1.9.4",
+    "@biomejs/biome": "2.4.14",
     "cspell": "10.0.0",
     "markdownlint-cli2": "0.22.1",
     "prettier": "3.8.3",