build(deps): bump actions/setup-node from 3 to 4 (python#111594)

* build(deps): 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>

* Bump to Node.js 20

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>

.github/workflows/new-bugs-announce-notifier.yml

@@ -13,9 +13,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
-          node-version: 14
+          node-version: 20
       - run: npm install mailgun.js form-data
       - name: Send notification
         uses: actions/github-script@v6