chore: 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] <[email protected]>

Author: dependabot[bot]

.github/workflows/required-spec-validations.yml

@@ -24,7 +24,7 @@ jobs:
         - name: Checkout repository
           uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
         - name: Setup Node
-          uses: actions/setup-node@v3
+          uses: actions/setup-node@v4
           with:
             node-version: '20.x'  
         - name: Install npm dependencies