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

Author: renovate[bot]

.github/workflows/image.yml

@@ -27,7 +27,7 @@ jobs:
       - uses: actions/checkout@v6
 
       # setup node
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: '22'
           registry-url: 'https://registry.npmjs.org'