Bump dessant/support-requests from 3 to 4 (#6160)

Bumps [dessant/support-requests](https://github.com/dessant/support-requests) from 3 to 4.
- [Release notes](https://github.com/dessant/support-requests/releases)
- [Changelog](https://github.com/dessant/support-requests/blob/main/CHANGELOG.md)
- [Commits](https://github.com/dessant/support-requests/compare/v3...v4)

---
updated-dependencies:
- dependency-name: dessant/support-requests
  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/support.yml

@@ -8,7 +8,7 @@ jobs:
   support:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/support-requests@v3
+      - uses: dessant/support-requests@v4
         with:
           github-token: ${{ github.token }}
           support-label:  "Support request"