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

Author: renovate[bot]

.github/workflows/build.yml

@@ -89,7 +89,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: '3.13'
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
           architecture: ${{ matrix.node }}
@@ -114,7 +114,7 @@ jobs:
           pattern: build-artifacts-*
           merge-multiple: true
           path: prebuilds
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
       - run: npm ci

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: actions/setup-node@v3
+    - uses: actions/setup-node@v6
       with:
         node-version: 20
     - run: npm ci
@@ -28,7 +28,7 @@ jobs:
           - { os: windows-2019, arch: x64 }
     steps:
     - uses: actions/checkout@v4
-    - uses: actions/setup-node@v3
+    - uses: actions/setup-node@v6
       with:
         node-version: ${{ matrix.node-version }}
     - run: npm ci