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

Author: renovate[bot]

.github/workflows/cli.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - name: Check out frontend
         uses: actions/checkout@v6
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 24
       - name: Install dependencies

.github/workflows/e2e.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Check out frontend
         uses: actions/checkout@v6
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 24
       - name: Install dependencies