Bump actions/download-artifact from 7 to 8 in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 7 to 8.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v7...v8)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/e2e-playwright-allure_report.yml

@@ -86,7 +86,7 @@ jobs:
     if: "${{ always() && needs.run-playwright-e2e.outputs.upload_success == 'true' && github.repository_owner == 'DependencyTrack' }}"
     steps:
       - name: Download test results
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: playwright-results
           path: playwright-test-results/allure-results