Bump actions/setup-node from 5 to 6 in the github-actions group

Bumps the github-actions group with 1 update: [actions/setup-node](https://github.com/actions/setup-node).


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

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

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

.github/workflows/CI.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v5
       - name: Setup Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 18.x
           cache: npm
@@ -55,7 +55,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Set Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 18.x
           cache: npm
@@ -80,7 +80,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Set Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 18.x
           cache: npm