ci: bump robinraju/release-downloader from 1.8 to 1.9

Bumps [robinraju/release-downloader](https://github.com/robinraju/release-downloader) from 1.8 to 1.9.
- [Release notes](https://github.com/robinraju/release-downloader/releases)
- [Commits](robinraju/release-downloader@v1.8...v1.9)

---
updated-dependencies:
- dependency-name: robinraju/release-downloader
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/release.yml

@@ -29,7 +29,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.TOFUENV_GITHUB_TOKEN }}
       - name: Download artifacts
-        uses: robinraju/release-downloader@v1.8
+        uses: robinraju/release-downloader@v1.9
         with:
           tag: ${{ github.ref_name }}
           tarBall: true