chore(deps): update actions/setup-node action to v6 (#2721)

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

Author: renovate[bot]

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
     - name: Install pnpm
       uses: pnpm/[email protected]
     - name: Use Node.js ${{ matrix.node }}
-      uses: actions/setup-node@v5
+      uses: actions/setup-node@v6
       with:
         node-version: ${{ matrix.node }}
         cache: 'pnpm'