deps(ci): bump robinraju/release-downloader from 1.12 to 1.13 (#32)

Bumps [robinraju/release-downloader](https://github.com/robinraju/release-downloader) from 1.12 to 1.13.
- [Release notes](https://github.com/robinraju/release-downloader/releases)
- [Commits](robinraju/release-downloader@daf26c5...28fc21f)

---
updated-dependencies:
- dependency-name: robinraju/release-downloader
  dependency-version: '1.13'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/update.yml

@@ -16,7 +16,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
 
       - name: Download swagger.json from tibiadata-api-go release
-        uses: robinraju/release-downloader@daf26c55d821e836577a15f77d86ddc078948b05 #v1.12
+        uses: robinraju/release-downloader@28fc21f50d76778e7023361aa1f863e717d3d56f #v1.13
         with:
           repository: tibiadata/tibiadata-api-go
           tag: ${{ github.event.client_payload.tag_name }}