Bump actions/setup-node from 5 to 6 (#276)

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
       - uses: actions/checkout@v5
 
       - run: corepack enable
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 22
           registry-url: https://registry.npmjs.org