Bump dessant/support-requests from 2 to 3

Bumps [dessant/support-requests](https://github.com/dessant/support-requests) from 2 to 3.
- [Release notes](https://github.com/dessant/support-requests/releases)
- [Changelog](https://github.com/dessant/support-requests/blob/master/CHANGELOG.md)
- [Commits](https://github.com/dessant/support-requests/compare/v2...v3)

---
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>

.github/workflows/support.yml

@@ -11,7 +11,7 @@ jobs:
   action:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/support-requests@v2
+      - uses: dessant/support-requests@v3
         with:
           github-token: ${{ github.token }}
           support-label: 'support'