Update actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/release-npm.yml

@@ -15,7 +15,7 @@ jobs:
     environment: Release
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: '24.x'
           cache: 'npm'

.github/workflows/test-javascript.yaml

@@ -34,7 +34,7 @@ jobs:
         run: git config --global core.autocrlf input
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
       - name: with Node.js ${{ matrix.node-version }} on ${{ matrix.os }}
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node-version }}
           cache: 'npm'