build(deps): bump actions/setup-node from 5 to 6

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 5 to 6.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/node.js.yml

@@ -28,7 +28,7 @@ jobs:
     steps:
     - uses: actions/checkout@v5
     - name: Set up Node.js
-      uses: actions/setup-node@v5
+      uses: actions/setup-node@v6
       with:
         # Note: '*' is "latest LTS version" (without check-latest, it would be
         # "latest LTS version in local cache") because it first checks
@@ -96,7 +96,7 @@ jobs:
     steps:
     - uses: actions/checkout@v5
     - name: Set up Node.js ${{ matrix.node }}
-      uses: actions/setup-node@v5
+      uses: actions/setup-node@v6
       with:
         node-version: ${{ matrix.node }}
         architecture: ${{ matrix.arch }}