chore(deps): update actions/setup-node action to v6 (#85)

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

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -16,7 +16,7 @@ jobs:
       uses: pnpm/action-setup@v4
 
     - name: Use Node.js
-      uses: actions/setup-node@v4
+      uses: actions/setup-node@v6
       with:
         node-version-file: '.node-version'
         cache: 'pnpm'