chore(deps): update actions/setup-node action to v6 (#271)

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

Author: renovate[bot]

.github/workflows/changesets.yml

@@ -26,7 +26,7 @@ jobs:
         uses: pnpm/action-setup@v4
 
       - name: Setup node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: 'pnpm'