chore(deps): update actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/website.yaml

@@ -22,7 +22,7 @@ jobs:
       - uses: pnpm/action-setup@41ff72655975bd51cab0327fa583b6e92b6d3061 # v4
         with:
           version: 10
-      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5
+      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6
         with:
           node-version: '24.10'
           cache: pnpm