Update actions/setup-node action to v6 (#600)

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

Author: renovate[bot]

.github/workflows/build.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Set Node.js 20.x
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 20.x
       - name: 'Install'
@@ -33,7 +33,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Set Node.js 20.x
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 20.x
       - name: 'Build action for test'