Bump actions/setup-node from 3.8.1 to 4.0.0

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 3.8.1 to 4.0.0.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v3.8.1...v4.0.0)

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

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

.github/workflows/deploy-docs.yml

@@ -19,7 +19,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Use Node.js LTS 18.x
-      uses: actions/setup-node@v3.8.1
+      uses: actions/setup-node@v4.0.0
       with:
         node-version: 18.x
 

.github/workflows/github-ci.yml

@@ -17,7 +17,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Use Node.js LTS 18.x
-      uses: actions/setup-node@v3.8.1
+      uses: actions/setup-node@v4.0.0
       with:
         node-version: 18.x