Update pypi.yml

Author: MaxHalford

.github/workflows/pypi.yml

@@ -127,7 +127,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-    - uses: actions/download-artifact@v5
+    - uses: actions/download-artifact@v4
       with:
         pattern: cibw-*
         path: dist