Bump actions/setup-node from 3 to 4

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 3 to 4.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v3...v4)

---
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/gh-pages.yml

@@ -24,7 +24,7 @@ jobs:
           submodules: true
 
       - name: "Set up Node"
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 16
 

.github/workflows/node-ci.yml

@@ -37,7 +37,7 @@ jobs:
           submodules: true
 
       - name: "Set up Node"
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 16