build(deps): bump actions/setup-node from 4 to 5 (#7123)

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4 to 5.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](https://github.com/actions/setup-node/compare/v4...v5)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/releaseEtherpad.yaml.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
         - name: Checkout repository
           uses: actions/checkout@v5
-        - uses: actions/setup-node@v4
+        - uses: actions/setup-node@v5
           with:
             node-version: 22
         - uses: pnpm/action-setup@v4