undo change to download

Author: blink1073

.github/workflows/test-python.yml

@@ -193,7 +193,7 @@ jobs:
       timeout-minutes: 20
       steps:
         - name: Download sdist
-          uses: actions/download-artifact@v5
+          uses: actions/download-artifact@v4
         - name: Unpack SDist
           shell: bash
           run: |