feat: use download-artifact instead of manually downloading it

This should hopefully work on private repos too!

.forgejo/workflows/check.yml

@@ -48,10 +48,9 @@ jobs:
     steps:
       - name: Download previous report
         uses: https://git.salame.cl/actions/download-artifact@d8d0a99033603453ad2255e58720b460a0555e1e # v4
+        # Ensure the previous step succeeded
+        # if: steps.previous-report.outcome == 'success'
         with:
-          name: report.json
+          name: ${{ inputs.artifact-name }}
-          github-token: ${{ github.token }}
+          # github-token: ${{ inputs.github-token }}
-          run-id: 15
+          # run-id: ${{ steps.previous-report.outputs.run-id }}
-      - name: Verify report exists
-        run: |
-          cat report.json