Update dawidd6/action-download-artifact action to v20

Author: renovate[bot]

.github/workflows/test-report.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Test Report
-        uses: dawidd6/action-download-artifact@0bd50d53a6d7fb5cb921e607957e9cc12b4ce392 # v12
+        uses: dawidd6/action-download-artifact@8305c0f1062bb0d184d09ef4493ecb9288447732 # v20
         with:
           name: test-results
           workflow: ${{ github.event.workflow.id }}