chore: Bump actions/setup-node from 3 to 6 (#1091)

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 3 to 6.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v3...v6)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/functional-test.yml

@@ -24,7 +24,7 @@ jobs:
     - uses: actions/checkout@v6
 
     - name: Install Node.js
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v6
       with:
         node-version: 'lts/*'