fix(deps): update dependency shiki to v2

Author: renovate[bot]

pnpm-lock.yaml

@@ -46,7 +46,7 @@
     "prettier-plugin-svelte": "^3.3.2",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
-    "shiki": "^1.24.0",
+    "shiki": "^2.0.0",
     "tailwind-merge": "^2.5.5",
     "ts-morph": "^24.0.0",
     "typescript": "^5.7.2",