Bump dawidd6/action-download-artifact from 14 to 15 (#309)

Bumps [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) from 14 to 15.
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](dawidd6/action-download-artifact@v14...v15)

---
updated-dependencies:
- dependency-name: dawidd6/action-download-artifact
  dependency-version: '15'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/update-pr.yml

@@ -20,7 +20,7 @@ jobs:
       - uses: haya14busa/action-workflow_run-status@v1
       - uses: actions/checkout@v6
       - name: 'Download branch build info'
-        uses: dawidd6/action-download-artifact@v14
+        uses: dawidd6/action-download-artifact@v15
         with:
           workflow: ${{ github.event.workflow_run.workflow_id }}
           run_id: ${{ github.event.workflow_run.id }}