build(deps): bump actions/download-artifact in the github-actions group

Bumps the github-actions group with 1 update: [actions/download-artifact](https://github.com/actions/download-artifact).


Updates `actions/download-artifact` from 4 to 5
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/flaky.yaml

@@ -59,7 +59,7 @@ jobs:
           echo TESTS_RESULT=$result
           echo "TESTS_RESULT=$result" >>"$GITHUB_ENV"
       - name: download nextest reports
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           pattern: libtest_run_${{ github.run_number }}-${{ github.run_attempt }}-*
           merge-multiple: true