Update actions/setup-node action to v6

| datasource  | package            | from | to |
| ----------- | ------------------ | ---- | -- |
| github-tags | actions/setup-node | v4   | v6 |

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -21,7 +21,7 @@ jobs:
           extensions: json, gd, random
 
       - name: Setup Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version-file: 'package.json'
 

.github/workflows/qa.yml

@@ -23,7 +23,7 @@ jobs:
           extensions: json, gd, random
 
       - name: Setup Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: '16.20.2'